317989994 has 32 divisors (see below), whose sum is σ = 551577600. Its totient is φ = 134679600.

The previous prime is 317989967. The next prime is 317990003. The reversal of 317989994 is 499989713.

It is a super-2 number, since 2×317989994² = 202235272568240072, which contains 22 as substring.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 758717 + ... + 759135.

It is an arithmetic number, because the mean of its divisors is an integer number (17236800).

Almost surely, 2^317989994 is an apocalyptic number.

317989994 is a deficient number, since it is larger than the sum of its proper divisors (233587606).

317989994 is a wasteful number, since it uses less digits than its factorization.

317989994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938.

The product of its digits is 4408992, while the sum is 59.

The square root of 317989994 is about 17832.2739436113. The cubic root of 317989994 is about 682.5552605454. Note that the first 3 decimals are identical.

The spelling of 317989994 in words is "three hundred seventeen million, nine hundred eighty-nine thousand, nine hundred ninety-four".