870315 has 16 divisors (see below), whose sum is σ = 1474848. Its totient is φ = 436736.

The previous prime is 870301. The next prime is 870323. The reversal of 870315 is 513078.

It is a cyclic number.

It is not a de Polignac number, because 870315 - 2⁵ = 870283 is a prime.

870315 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 870315.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1452 + ... + 1961.

It is an arithmetic number, because the mean of its divisors is an integer number (92178).

2⁸⁷⁰³¹⁵ is an apocalyptic number.

870315 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

870315 is a deficient number, since it is larger than the sum of its proper divisors (604533).

870315 is a wasteful number, since it uses less digits than its factorization.

870315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3438.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 870315 is about 932.9067477513. The cubic root of 870315 is about 95.4755472239.

The spelling of 870315 in words is "eight hundred seventy thousand, three hundred fifteen".