Multiple choice general knowledge math & puzzles Which one is the HARSHAD NUMBER 800 802 805 809 Reveal answer Fill a bubble to check yourself A Correct answer Explanation A Harshad number is an integer divisible by the sum of its digits. For 800, the sum is 8+0+0=8. Since 800 is divisible by 8, it is a Harshad number. 802 (sum 10), 805 (sum 13), and 809 (sum 17) are not.