316988 has 12 divisors (see below), whose sum is σ = 634032. Its totient is φ = 135840.

The previous prime is 316961. The next prime is 316991. The reversal of 316988 is 889613.

316988 is an admirable number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 316988.

It is an unprimeable number.

316988 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 3 ways as a sum of consecutive naturals, for example, 5633 + ... + 5688.

It is an arithmetic number, because the mean of its divisors is an integer number (52836).

2³¹⁶⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

316988 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

316988 is a wasteful number, since it uses less digits than its factorization.

316988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11332 (or 11330 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 316988 is about 563.0168736370. The cubic root of 316988 is about 68.1837590289.

It can be divided in two parts, 3169 and 88, that multiplied together give a palindrome (278872).

The spelling of 316988 in words is "three hundred sixteen thousand, nine hundred eighty-eight".