Fatto matematico: 8860 is the smallest number n so that n+3, n^{2}+3^{2}, n^{4}+3^{4}, and n^{8}+3^{8} are all prime.
Trivia: 8860 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: April 3rd is the day in 1981 that the Osborne 1, the first successful portable computer, is unveiled at the West Coast Computer Faire in San Francisco.