What is the difference between nine thousand and the sum of 5479 and 1388?

The difference between nine thousand and the sum of 5479 and 1388 can be calculated by subtracting the sum of 5479 and 1388 from 9000.

9000 - (5479 + 1388) = 9000 - 6867 = 2133.

Therefore, the difference between nine thousand and the sum of 5479 and 1388 is 2133.