716591 has 2 divisors, whose sum is σ = 716592. Its totient is φ = 716590.

The previous prime is 716581. The next prime is 716621. The reversal of 716591 is 195617.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 716591 - 2¹⁰ = 715567 is a prime.

It is a super-2 number, since 2×716591² = 1027005322562, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 716591.

It is not a weakly prime, because it can be changed into another prime (716501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358295 + 358296.

It is an arithmetic number, because the mean of its divisors is an integer number (358296).

2⁷¹⁶⁵⁹¹ is an apocalyptic number.

716591 is a deficient number, since it is larger than the sum of its proper divisors (1).

716591 is an equidigital number, since it uses as much as digits as its factorization.

716591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1890, while the sum is 29.

The square root of 716591 is about 846.5169815190. The cubic root of 716591 is about 89.4864163815.

The spelling of 716591 in words is "seven hundred sixteen thousand, five hundred ninety-one".