Fait général: 28529 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 28529 is an uninteresting number.
Culture générale: 28529 is an unremarkable number.
Date historique: February 8th is the day in 1989 that an Independent Air Boeing 707 crashes into Pico Alto mountain in the island of Santa Maria in the Azores, killing 144.