Hecho general: 28350 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 28350 is an unremarkable number.
Trivia: 28350 is a boring number.
Fecha histórica: August 13th is the day in 1969 that the Apollo 11 astronauts are released from a three-week quarantine to enjoy a ticker-tape parade in New York.