716580817 has 2 divisors, whose sum is σ = 716580818. Its totient is φ = 716580816.

The previous prime is 716580811. The next prime is 716580833. The reversal of 716580817 is 718085617.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 695060496 + 21520321 = 26364^2 + 4639^2 .

It is a cyclic number.

It is not a de Polignac number, because 716580817 - 2¹⁹ = 716056529 is a prime.

It is not a weakly prime, because it can be changed into another prime (716580811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358290408 + 358290409.

It is an arithmetic number, because the mean of its divisors is an integer number (358290409).

Almost surely, 2^716580817 is an apocalyptic number.

It is an amenable number.

716580817 is a deficient number, since it is larger than the sum of its proper divisors (1).

716580817 is an equidigital number, since it uses as much as digits as its factorization.

716580817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 43.

The square root of 716580817 is about 26769.0271956229. The cubic root of 716580817 is about 894.8599250212.

The spelling of 716580817 in words is "seven hundred sixteen million, five hundred eighty thousand, eight hundred seventeen".