315897 has 8 divisors (see below), whose sum is σ = 435840. Its totient is φ = 203280.

The previous prime is 315893. The next prime is 315899. The reversal of 315897 is 798513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 315897 - 2² = 315893 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 315897.

It is not an unprimeable number, because it can be changed into a prime (315893) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1729 + ... + 1902.

It is an arithmetic number, because the mean of its divisors is an integer number (54480).

2³¹⁵⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

315897 is a deficient number, since it is larger than the sum of its proper divisors (119943).

315897 is a wasteful number, since it uses less digits than its factorization.

315897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3663.

The product of its digits is 7560, while the sum is 33.

The square root of 315897 is about 562.0471510470. The cubic root of 315897 is about 68.1054448263.

The spelling of 315897 in words is "three hundred fifteen thousand, eight hundred ninety-seven".