616721

616721 is a positive integer in the natural numbers. It is the successor of 616720 and the predecessor of 616722.

Its prime factorization is 7 × 88103, with 88103 prime, making 616721 a square-free composite number. Consequently, it has four positive divisors: 1, 7, 88103, and 616721.

It is odd and not divisible by 2, 3, or 5. As a product of two distinct primes, 616721 can serve as a simple example in discussions of prime factorization, divisor counting, and related number-theory concepts.

In mathematical contexts, 616721 may be referenced as a representative square-free composite or as a case study for verifying divisor-count formulas and primality tests on large integers.