8. (5 points) Mr. Wang, who teaches mathematics, is preparing to visit a friend. Before leaving, Mr. Wang calls his friend, whose phone number is 27433619. After Mr. Wang finishes the call, he realizes that this phone number is exactly the product of 4 consecutive prime numbers. What is the sum of these 4 prime numbers? $\qquad$
【Analysis】According to 27433619 being the product of four consecutive prime numbers, find the four consecutive prime numbers, and then find the sum of the four consecutive prime numbers.

【Solution】Solution: By trial, $2, 3, 5, 7 \cdots 61$ and other prime numbers are not factors of 27433619, the smallest prime factor is 67,
$$
27433619 \div 67=409457 \text {, }
$$

then the four consecutive prime numbers are $67,71,73,79$.
Their sum is $67+71+73+79=290$.
Therefore, the answer is: 290.