715643 has 2 divisors, whose sum is σ = 715644. Its totient is φ = 715642.

The previous prime is 715639. The next prime is 715651. The reversal of 715643 is 346517.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 715643 - 2² = 715639 is a prime.

It is not a weakly prime, because it can be changed into another prime (715613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357821 + 357822.

It is an arithmetic number, because the mean of its divisors is an integer number (357822).

2⁷¹⁵⁶⁴³ is an apocalyptic number.

715643 is a deficient number, since it is larger than the sum of its proper divisors (1).

715643 is an equidigital number, since it uses as much as digits as its factorization.

715643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 26.

The square root of 715643 is about 845.9568546918. The cubic root of 715643 is about 89.4469375344.

The spelling of 715643 in words is "seven hundred fifteen thousand, six hundred forty-three".