316686593 has 2 divisors, whose sum is σ = 316686594. Its totient is φ = 316686592.

The previous prime is 316686577. The next prime is 316686613. The reversal of 316686593 is 395686613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 260241424 + 56445169 = 16132^2 + 7513^2 .

It is a cyclic number.

It is not a de Polignac number, because 316686593 - 2⁴ = 316686577 is a prime.

It is not a weakly prime, because it can be changed into another prime (316686533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158343296 + 158343297.

It is an arithmetic number, because the mean of its divisors is an integer number (158343297).

Almost surely, 2^316686593 is an apocalyptic number.

It is an amenable number.

316686593 is a deficient number, since it is larger than the sum of its proper divisors (1).

316686593 is an equidigital number, since it uses as much as digits as its factorization.

316686593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 47.

The square root of 316686593 is about 17795.6902928771. The cubic root of 316686593 is about 681.6214140793.

The spelling of 316686593 in words is "three hundred sixteen million, six hundred eighty-six thousand, five hundred ninety-three".