8643

8643 is a positive integer. It is odd and composite. Its prime factorization is 3 × 43 × 67, making it a squarefree number with three distinct prime factors.

Because the sum of its digits is 21, 8643 is divisible by 3 but not by 9. It is not divisible by 2 or 5. The eight positive divisors of 8643 are 1, 3, 43, 67, 129, 201, 2881, and 8643.

In other bases, 8643 is represented as 0x21C3 in hexadecimal, 20703 in octal, and 10000111000011 in binary.

Since it is the product of three distinct primes, 8643 is squarefree and has exactly eight divisors. It is congruent to 3 modulo 4 and is divisible by 3, reflecting its factorization.

Beyond its basic arithmetic properties, 8643 does not have widespread special significance in mathematics or culture. It is commonly encountered as an example in problems illustrating factorization, divisor counts, and base conversion.