Definition: In this task you will be given a list of numbers. You should remove any number that is not an integer (whole number). If every number is not an whole number then an empty list ("[]") should be returned. Otherwise, answer with the list of whole numbers separated by comma inside brackets.
Input: [87, 42.733, -23, 35.563, 58, 72, 37.875, 2.804]

[87, -23, 58, 72]