317916 has 18 divisors (see below), whose sum is σ = 803712. Its totient is φ = 105960.

The previous prime is 317903. The next prime is 317921. The reversal of 317916 is 619713.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 317916.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4380 + ... + 4451.

2³¹⁷⁹¹⁶ is an apocalyptic number.

317916 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

317916 is an abundant number, since it is smaller than the sum of its proper divisors (485796).

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

317916 is a wasteful number, since it uses less digits than its factorization.

317916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8841 (or 8836 counting only the distinct ones).

The product of its digits is 1134, while the sum is 27.

The square root of 317916 is about 563.8404029510. The cubic root of 317916 is about 68.2502314527.

The spelling of 317916 in words is "three hundred seventeen thousand, nine hundred sixteen".