317992999 has 2 divisors, whose sum is σ = 317993000. Its totient is φ = 317992998.

The previous prime is 317992943. The next prime is 317993017. The reversal of 317992999 is 999299713.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 317992999 - 2⁹ = 317992487 is a prime.

It is a super-2 number, since 2×317992999² = 202239094826028002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317992919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158996499 + 158996500.

It is an arithmetic number, because the mean of its divisors is an integer number (158996500).

Almost surely, 2^317992999 is an apocalyptic number.

317992999 is a deficient number, since it is larger than the sum of its proper divisors (1).

317992999 is an equidigital number, since it uses as much as digits as its factorization.

317992999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2480058, while the sum is 58.

The square root of 317992999 is about 17832.3582007540. The cubic root of 317992999 is about 682.5574105838.

The spelling of 317992999 in words is "three hundred seventeen million, nine hundred ninety-two thousand, nine hundred ninety-nine".