716631089 has 2 divisors, whose sum is σ = 716631090. Its totient is φ = 716631088.

The previous prime is 716631031. The next prime is 716631101. The reversal of 716631089 is 980136617.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 480486400 + 236144689 = 21920^2 + 15367^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-716631089 is a prime.

It is not a weakly prime, because it can be changed into another prime (716631689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358315544 + 358315545.

It is an arithmetic number, because the mean of its divisors is an integer number (358315545).

Almost surely, 2^716631089 is an apocalyptic number.

It is an amenable number.

716631089 is a deficient number, since it is larger than the sum of its proper divisors (1).

716631089 is an equidigital number, since it uses as much as digits as its factorization.

716631089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 716631089 is about 26769.9661748012. The cubic root of 716631089 is about 894.8808509448.

The spelling of 716631089 in words is "seven hundred sixteen million, six hundred thirty-one thousand, eighty-nine".