Fatto generale: 7860 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 7860 is the number of nonisomorphic 3-state automata with binary inputs and outputs.
Trivia: 7860 is an uninteresting number.
Data storica: July 8th is the day in 1896 that William Jennings Bryan delivers his Cross of Gold speech advocating bimetalism at the 1896 Democratic National Convention in Chicago.