Fatto matematico: 17670 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 17670 is an uninteresting number.
Data storica: May 17th is the day in 1987 that an Iraqi Dassault Mirage F1 fighter jet fires two missiles into the U.S. Navy warship USS Stark, killing 37 and injuring 21 of her crew.