317574979 has 2 divisors, whose sum is σ = 317574980. Its totient is φ = 317574978.

The previous prime is 317574953. The next prime is 317575021. The reversal of 317574979 is 979475713.

It is a weak prime.

It is an emirp because it is prime and its reverse (979475713) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 317574979 - 2⁵ = 317574947 is a prime.

It is not a weakly prime, because it can be changed into another prime (317574919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158787489 + 158787490.

It is an arithmetic number, because the mean of its divisors is an integer number (158787490).

Almost surely, 2^317574979 is an apocalyptic number.

317574979 is a deficient number, since it is larger than the sum of its proper divisors (1).

317574979 is an equidigital number, since it uses as much as digits as its factorization.

317574979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1666980, while the sum is 52.

The square root of 317574979 is about 17820.6335184808. The cubic root of 317574979 is about 682.2581925032.

The spelling of 317574979 in words is "three hundred seventeen million, five hundred seventy-four thousand, nine hundred seventy-nine".