317980 has 24 divisors (see below), whose sum is σ = 719712. Its totient is φ = 117312.

The previous prime is 317971. The next prime is 317983. The reversal of 317980 is 89713.

It is a super-2 number, since 2×317980² = 202222560800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317983) by changing a digit.

317980 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352 + ... + 871.

It is an arithmetic number, because the mean of its divisors is an integer number (29988).

2³¹⁷⁹⁸⁰ is an apocalyptic number.

It is an amenable number.

317980 is an abundant number, since it is smaller than the sum of its proper divisors (401732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

317980 is a wasteful number, since it uses less digits than its factorization.

317980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245 (or 1243 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 317980 is about 563.8971537435. The cubic root of 317980 is about 68.2548109871.

The spelling of 317980 in words is "three hundred seventeen thousand, nine hundred eighty".