878315 has 4 divisors (see below), whose sum is σ = 1053984. Its totient is φ = 702648.

The previous prime is 878309. The next prime is 878359. The reversal of 878315 is 513878.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 513878 = 2 ⋅256939.

It is a cyclic number.

It is not a de Polignac number, because 878315 - 2⁴ = 878299 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87827 + ... + 87836.

It is an arithmetic number, because the mean of its divisors is an integer number (263496).

2⁸⁷⁸³¹⁵ is an apocalyptic number.

878315 is a deficient number, since it is larger than the sum of its proper divisors (175669).

878315 is a wasteful number, since it uses less digits than its factorization.

878315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175668.

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

The square root of 878315 is about 937.1846136168. The cubic root of 878315 is about 95.7671948614.

The spelling of 878315 in words is "eight hundred seventy-eight thousand, three hundred fifteen".