Fait général: 4636 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 4636 is an unremarkable number.
Culture générale: 4636 is an uninteresting number.
Date historique: September 9th is the day in 1922 that the Greco-Turkish War of 1919-1922 effectively ends with Turkish victory over the Greeks in Smyrna.