Fait général: 15689 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 15689 is an unremarkable number.
Culture générale: 15689 is an uninteresting number.
Date historique: December 14th is the day in 1963 that Baldwin Hills Reservoir wall bursts, killing five people and damaging hundreds of homes in Los Angeles.