Fatto generale: 70003 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 70003 is an uninteresting number.
Trivia: 70003 is an unremarkable number.
Data storica: August 29th is the day in 1996 that Vnukovo Airlines Flight 2801, a Vnukovo Airlines Tupolev Tu-154, crashes into a mountain on the Arctic island of Spitsbergen, killing all 141 aboard.