316688 has 10 divisors (see below), whose sum is σ = 613614. Its totient is φ = 158336.

The previous prime is 316681. The next prime is 316691. The reversal of 316688 is 886613.

316688 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 300304 + 16384 = 548^2 + 128^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 316688.

It is not an unprimeable number, because it can be changed into a prime (316681) by changing a digit.

316688 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 9881 + ... + 9912.

2³¹⁶⁶⁸⁸ is an apocalyptic number.

It is an amenable number.

316688 is a deficient number, since it is larger than the sum of its proper divisors (296926).

316688 is a wasteful number, since it uses less digits than its factorization.

316688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19801 (or 19795 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 316688 is about 562.7503887160. The cubic root of 316688 is about 68.1622423531.

The spelling of 316688 in words is "three hundred sixteen thousand, six hundred eighty-eight".