716619613 has 2 divisors, whose sum is σ = 716619614. Its totient is φ = 716619612.

The previous prime is 716619601. The next prime is 716619661. The reversal of 716619613 is 316916617.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 441126009 + 275493604 = 21003^2 + 16598^2 .

It is an emirp because it is prime and its reverse (316916617) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-716619613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (716619313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358309806 + 358309807.

It is an arithmetic number, because the mean of its divisors is an integer number (358309807).

Almost surely, 2^716619613 is an apocalyptic number.

It is an amenable number.

716619613 is a deficient number, since it is larger than the sum of its proper divisors (1).

716619613 is an equidigital number, since it uses as much as digits as its factorization.

716619613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 40.

The square root of 716619613 is about 26769.7518292568. The cubic root of 716619613 is about 894.8760740995.

The spelling of 716619613 in words is "seven hundred sixteen million, six hundred nineteen thousand, six hundred thirteen".