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: [-17.864, -6.668, 4, 63, 5.352, 17, 0.82, -9.471, 4.646]

[4, 63, 17]