Fatto generale: 5707 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 5707 is an unremarkable number.
Trivia: 5707 is an uninteresting number.
Data storica: August 16th is the day in 1863 that the Dominican Restoration War begins when Gregorio Luperón raises the Dominican flag in Santo Domingo after Spain had recolonized the country.