Fatto matematico: 906 is the number of perfect graphs with 7 vertices.
Trivia: 906 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: June 24th is the day in 1604 that Samuel de Champlain discovers the mouth of the Saint John River, site of Reversing Falls and the present day city of Saint John, New Brunswick, Canada.