How to calculate probability of overlap between two sets

I have a question about calculating the hypergeometric test.

I have two sets of random names and a number that shows the overlap:

the number of names in set A: 488
the number of names in set B: 312
the number of overlap between the two sets: 16

I want to calculate if the number of overlap between the two sets is significant or is by chance?

How can I perform this by having ONLY three values as input?

Thank you.