37349

I found 5 solutions.
At first I thought that o had to equal over 5 and it had to be even.
But then I found that 765 worked so did 734 so o can be any number,but if the number is 5 or lower this meant that w had to be over 5. If the number was over 5 then w would have to be 4 and lower.T always has to be 6 or over.

F is always 1. 0 I've already explained. U can be anything. R is always even.