6489

6489 is a natural number that comes after 6488 and before 6490. It is a composite number with prime factorization 3^2 × 7 × 103, so its prime divisors are 3, 7, and 103.

The positive divisors of 6489 are 1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, and 6489. The sum of all divisors is 10816, making the sum of proper divisors equal to 4327. Because 4327 < 6489, 6489 is a deficient number.

In various base representations, 6489 appears as follows: decimal 6489, binary 1100101011001, octal 14531, and hexadecimal 0x1959.

Other basic properties include that 6489 is odd and not a prime. It is not a perfect square, and it is not a Harshad (Niven) number in base 10, since the digit sum is 27 and 6489 is not divisible by 27.