General fact: 47849 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 47849 is a boring number.
Trivia: 47849 is an uninteresting number.
Historical date: January 2nd is the day in 1974 that President Richard Nixon signs a bill lowering the maximum U.S. speed limit to 55 MPH in order to conserve gasoline during an OPEC embargo.