An integer consists of 7 different digits, and is a multiple of each of its digits.

What digits are in this nubmer?
1. **Identify the digits that cannot be in the number:**
   - **Digit 0:** If 0 were a digit of \( n \), then \( n \) would not be a multiple of 0 (since division by zero is undefined). Therefore, 0 cannot be a digit of \( n \).
   - **Digit 5:** If 5 were a digit of \( n \), then \( n \) must end in 5 to be divisible by 5 (since 0 is not a digit). This would make \( n \) odd, and thus \( n \) cannot have any even digits, which is impossible since we need 7 different digits. Therefore, 5 cannot be a digit of \( n \).
   - **Digit 4:** If 4 were a digit of \( n \), then we need to check the sum of the digits to ensure it is a multiple of 3 and 9. Removing any one digit from \(\{1,2,3,6,7,8,9\}\) and adding 4 does not result in a sum that is a multiple of 9. Therefore, 4 cannot be a digit of \( n \).

2. **Determine the remaining digits:**
   - The remaining digits are \(\{1, 2, 3, 6, 7, 8, 9\}\).

3. **Verify the construction:**
   - A valid construction of \( n \) using these digits is \( n = 3678192 \).
   - Check if \( n \) is divisible by each of its digits:
     - \( 3678192 \div 1 = 3678192 \) (divisible)
     - \( 3678192 \div 2 = 1839096 \) (divisible)
     - \( 3678192 \div 3 = 1226064 \) (divisible)
     - \( 3678192 \div 6 = 613032 \) (divisible)
     - \( 3678192 \div 7 = 525456 \) (divisible)
     - \( 3678192 \div 8 = 459774 \) (divisible)
     - \( 3678192 \div 9 = 408688 \) (divisible)

Since \( 3678192 \) is divisible by each of its digits, the construction is valid.

The final answer is \(\boxed{1, 2, 3, 6, 7, 8, 9}\).