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: [-53, 25, -4, -3.186, 99, 17.839, 89, 9.408, 28]

[-53, 25, -4, 99, 89, 28]