315716 has 6 divisors (see below), whose sum is σ = 552510. Its totient is φ = 157856.

The previous prime is 315703. The next prime is 315739. The reversal of 315716 is 617513.

It can be written as a sum of positive squares in only one way, i.e., 313600 + 2116 = 560^2 + 46^2 .

It is a junction number, because it is equal to n+sod(n) for n = 315691 and 315700.

It is an unprimeable number.

315716 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, 39461 + ... + 39468.

It is an arithmetic number, because the mean of its divisors is an integer number (92085).

2³¹⁵⁷¹⁶ is an apocalyptic number.

It is an amenable number.

315716 is a deficient number, since it is larger than the sum of its proper divisors (236794).

315716 is a wasteful number, since it uses less digits than its factorization.

315716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78933 (or 78931 counting only the distinct ones).

The product of its digits is 630, while the sum is 23.

The square root of 315716 is about 561.8861094564. The cubic root of 315716 is about 68.0924348467.

The spelling of 315716 in words is "three hundred fifteen thousand, seven hundred sixteen".