317999999 has 8 divisors (see below), whose sum is σ = 322050048. Its totient is φ = 313974360.

The previous prime is 317999959. The next prime is 318000049. The reversal of 317999999 is 999999713.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317999999 is a prime.

It is a super-2 number, since 2×317999999² = 202247998728000002, which contains 22 as substring.

It is a Duffinian number.

317999999 is a modest number, since divided by 99999 gives 3179 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317999939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20864 + ... + 32730.

It is an arithmetic number, because the mean of its divisors is an integer number (40256256).

Almost surely, 2^317999999 is an apocalyptic number.

317999999 is a deficient number, since it is larger than the sum of its proper divisors (4050049).

317999999 is a wasteful number, since it uses less digits than its factorization.

317999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12205.

The product of its digits is 11160261, while the sum is 65.

The square root of 317999999 is about 17832.5544720884. The cubic root of 317999999 is about 682.5624189402.

The spelling of 317999999 in words is "three hundred seventeen million, nine hundred ninety-nine thousand, nine hundred ninety-nine".