317479691 has 2 divisors, whose sum is σ = 317479692. Its totient is φ = 317479690.

The previous prime is 317479651. The next prime is 317479693. The reversal of 317479691 is 196974713.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 317479691 - 2¹⁸ = 317217547 is a prime.

Together with 317479693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (317479693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158739845 + 158739846.

It is an arithmetic number, because the mean of its divisors is an integer number (158739846).

Almost surely, 2^317479691 is an apocalyptic number.

317479691 is a deficient number, since it is larger than the sum of its proper divisors (1).

317479691 is an equidigital number, since it uses as much as digits as its factorization.

317479691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768, while the sum is 47.

The square root of 317479691 is about 17817.9597878096. The cubic root of 317479691 is about 682.1899487537.

The spelling of 317479691 in words is "three hundred seventeen million, four hundred seventy-nine thousand, six hundred ninety-one".