316689913 has 2 divisors, whose sum is σ = 316689914. Its totient is φ = 316689912.

The previous prime is 316689869. The next prime is 316689917. The reversal of 316689913 is 319986613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 300432889 + 16257024 = 17333^2 + 4032^2 .

It is a cyclic number.

It is not a de Polignac number, because 316689913 - 2¹⁷ = 316558841 is a prime.

It is not a weakly prime, because it can be changed into another prime (316689917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158344956 + 158344957.

It is an arithmetic number, because the mean of its divisors is an integer number (158344957).

Almost surely, 2^316689913 is an apocalyptic number.

It is an amenable number.

316689913 is a deficient number, since it is larger than the sum of its proper divisors (1).

316689913 is an equidigital number, since it uses as much as digits as its factorization.

316689913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 46.

The square root of 316689913 is about 17795.7835736446. The cubic root of 316689913 is about 681.6237960085.

The spelling of 316689913 in words is "three hundred sixteen million, six hundred eighty-nine thousand, nine hundred thirteen".