Fatto generale: 17020 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 17020 is an uninteresting number.
Trivia: 17020 is an uninteresting number.
Data storica: August 6th is the day in 1988 that the Tompkins Square Park Police Riot in New York City spurs a reform of the NYPD, held responsible for the event.