316686613 has 2 divisors, whose sum is σ = 316686614. Its totient is φ = 316686612.

The previous prime is 316686593. The next prime is 316686637.

316686613 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194407249 + 122279364 = 13943^2 + 11058^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 316686613 - 2⁹ = 316686101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316686683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158343306 + 158343307.

It is an arithmetic number, because the mean of its divisors is an integer number (158343307).

Almost surely, 2^316686613 is an apocalyptic number.

It is an amenable number.

316686613 is a deficient number, since it is larger than the sum of its proper divisors (1).

316686613 is an equidigital number, since it uses as much as digits as its factorization.

316686613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 40.

The square root of 316686613 is about 17795.6908548109. The cubic root of 316686613 is about 681.6214284283.

The spelling of 316686613 in words is "three hundred sixteen million, six hundred eighty-six thousand, six hundred thirteen".