317956 has 12 divisors (see below), whose sum is σ = 575820. Its totient is φ = 153440.

The previous prime is 317923. The next prime is 317957. The reversal of 317956 is 659713.

It can be written as a sum of positive squares in 2 ways, for example, as 129600 + 188356 = 360^2 + 434^2 .

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255 + ... + 1486.

It is an arithmetic number, because the mean of its divisors is an integer number (47985).

2³¹⁷⁹⁵⁶ is an apocalyptic number.

It is an amenable number.

317956 is a deficient number, since it is larger than the sum of its proper divisors (257864).

317956 is a wasteful number, since it uses less digits than its factorization.

317956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2774 (or 2772 counting only the distinct ones).

The product of its digits is 5670, while the sum is 31.

The square root of 317956 is about 563.8758728657. The cubic root of 317956 is about 68.2530937337.

The spelling of 317956 in words is "three hundred seventeen thousand, nine hundred fifty-six".