Fatto generale: 75473 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 75473 is a boring number.
Trivia: 75473 is an unremarkable number.
Data storica: August 21st is the day in 1968 that James Anderson, Jr. posthumously receives the first Medal of Honor to be awarded to an African American U.S. Marine.