879856 has 20 divisors (see below), whose sum is σ = 1722112. Its totient is φ = 435456.

The previous prime is 879839. The next prime is 879859. The reversal of 879856 is 658978.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879859) by changing a digit.

879856 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 1816 + ... + 2248.

2⁸⁷⁹⁸⁵⁶ is an apocalyptic number.

It is an amenable number.

879856 is a deficient number, since it is larger than the sum of its proper divisors (842256).

879856 is a wasteful number, since it uses less digits than its factorization.

879856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 562 counting only the distinct ones).

The product of its digits is 120960, while the sum is 43.

The square root of 879856 is about 938.0063965667. The cubic root of 879856 is about 95.8231698526.

The spelling of 879856 in words is "eight hundred seventy-nine thousand, eight hundred fifty-six".