315887 has 12 divisors (see below), whose sum is σ = 379176. Its totient is φ = 259440.

The previous prime is 315883. The next prime is 315893. The reversal of 315887 is 788513.

It is not a de Polignac number, because 315887 - 2² = 315883 is a prime.

It is a Duffinian 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 315887.

It is not an unprimeable number, because it can be changed into a prime (315881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6698 + ... + 6744.

It is an arithmetic number, because the mean of its divisors is an integer number (31598).

2³¹⁵⁸⁸⁷ is an apocalyptic number.

315887 is a deficient number, since it is larger than the sum of its proper divisors (63289).

315887 is a wasteful number, since it uses less digits than its factorization.

315887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 71 counting only the distinct ones).

The product of its digits is 6720, while the sum is 32.

The square root of 315887 is about 562.0382549258. The cubic root of 315887 is about 68.1047261726.

The spelling of 315887 in words is "three hundred fifteen thousand, eight hundred eighty-seven".