317979 has 8 divisors (see below), whose sum is σ = 471120. Its totient is φ = 211968.

The previous prime is 317971. The next prime is 317983. The reversal of 317979 is 979713.

It is not a de Polignac number, because 317979 - 2³ = 317971 is a prime.

It is a super-2 number, since 2×317979² = 202221288882, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 317979.

It is not an unprimeable number, because it can be changed into a prime (317971) 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, 5862 + ... + 5915.

It is an arithmetic number, because the mean of its divisors is an integer number (58890).

2³¹⁷⁹⁷⁹ is an apocalyptic number.

317979 is a deficient number, since it is larger than the sum of its proper divisors (153141).

317979 is a wasteful number, since it uses less digits than its factorization.

317979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11786 (or 11780 counting only the distinct ones).

The product of its digits is 11907, while the sum is 36.

The square root of 317979 is about 563.8962670563. The cubic root of 317979 is about 68.2547394366.

It can be divided in two parts, 317 and 979, that added together give a 4-th power (1296 = 6⁴).

The spelling of 317979 in words is "three hundred seventeen thousand, nine hundred seventy-nine".