Fait mathématique: 9738 is the number of trees on 22 vertices with diameter 5.
Culture générale: 9738 is an unremarkable number.
Date historique: August 29th is the day in 1982 that the synthetic chemical element Meitnerium, atomic number 109, is first synthesized at the Gesellschaft für Schwerionenforschung in Darmstadt, Germany.