0
To the nearest hundred, 3600
3600
3600
3600
3550 to 3649 -- 100 numbers
One thousand if you include 3600. The reason I say if you include it is you really aren't rounding 3600 to 3600. It's just 3600.
3600
3600
3600
To the nearest hundred, 3600
No number if rounded to the nearest thousand would round to 3600. If you had to round the number 3600 to the nearest thousand, it would be approximately equal to 4000.