Fatto matematico: 28738 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 28738 is an unremarkable number.
Data storica: September 5th is the day in 1945 that Iva Toguri D'Aquino, a Japanese-American suspected of being wartime radio propagandist Tokyo Rose, is arrested in Yokohama.