879215 has 4 divisors (see below), whose sum is σ = 1055064. Its totient is φ = 703368.

The previous prime is 879199. The next prime is 879227. The reversal of 879215 is 512978.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 512978 = 2 ⋅256489.

It is a cyclic number.

It is not a de Polignac number, because 879215 - 2⁴ = 879199 is a prime.

It is a Duffinian number.

It is a congruent 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, 87917 + ... + 87926.

It is an arithmetic number, because the mean of its divisors is an integer number (263766).

2⁸⁷⁹²¹⁵ is an apocalyptic number.

879215 is a deficient number, since it is larger than the sum of its proper divisors (175849).

879215 is a wasteful number, since it uses less digits than its factorization.

879215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175848.

The product of its digits is 5040, while the sum is 32.

The square root of 879215 is about 937.6646522078. The cubic root of 879215 is about 95.7998942356.

The spelling of 879215 in words is "eight hundred seventy-nine thousand, two hundred fifteen".