Poker: Need a River Winner. Can we get one?

Situation: The Turn has been dealt and you seem to be drawing thin to beat the Nines. But with two over cards and a Flush possibility you still have a chance to win this one. Can you figure out the exact number of Outs that you have to win this hand?

*Hint* Don't consider a higher straight draw, as a 9 on the River will give your opponent a Full House.