716573969 has 2 divisors, whose sum is σ = 716573970. Its totient is φ = 716573968.

The previous prime is 716573909. The next prime is 716573981. The reversal of 716573969 is 969375617.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 537683344 + 178890625 = 23188^2 + 13375^2 .

It is a cyclic number.

It is not a de Polignac number, because 716573969 - 2²⁴ = 699796753 is a prime.

It is a super-2 number, since 2×716573969² = 1026956506096825922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 716573969.

It is not a weakly prime, because it can be changed into another prime (716573909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358286984 + 358286985.

It is an arithmetic number, because the mean of its divisors is an integer number (358286985).

Almost surely, 2^716573969 is an apocalyptic number.

It is an amenable number.

716573969 is a deficient number, since it is larger than the sum of its proper divisors (1).

716573969 is an equidigital number, since it uses as much as digits as its factorization.

716573969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2143260, while the sum is 53.

The square root of 716573969 is about 26768.8992862986. The cubic root of 716573969 is about 894.8570744378.

The spelling of 716573969 in words is "seven hundred sixteen million, five hundred seventy-three thousand, nine hundred sixty-nine".