8499 should certainly be rounded to 8000, though I would argue that 8500 is the largest number that should be rounded to 8000.
8000
8000
8000
8000
The smallest whole number which, when rounded off to the nearest thousand, is equal to 8000 is 7500. This is because when you round 7500 to the nearest thousand, it becomes 8000.
8000
8499 should certainly be rounded to 8000, though I would argue that 8500 is the largest number that should be rounded to 8000.
8000
8000
8000
8000
8000
10
8000
8000
8000