Fait général: 9615 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 9615 is the smallest number whose cube starts with 5 identical digits.
Culture générale: 9615 is an uninteresting number.
Date historique: April 28th is the day in 357 that Emperor Constantius II enters Rome for the first time to celebrate his victory over Magnus Magnentius.