879813 has 12 divisors (see below), whose sum is σ = 1386528. Its totient is φ = 533160.

The previous prime is 879799. The next prime is 879817. The reversal of 879813 is 318978.

It is not a de Polignac number, because 879813 - 2⁴ = 879797 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879817) 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 11 ways as a sum of consecutive naturals, for example, 4345 + ... + 4542.

It is an arithmetic number, because the mean of its divisors is an integer number (115544).

2⁸⁷⁹⁸¹³ is an apocalyptic number.

It is an amenable number.

879813 is a deficient number, since it is larger than the sum of its proper divisors (506715).

879813 is a wasteful number, since it uses less digits than its factorization.

879813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8904 (or 8901 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 879813 is about 937.9834753342. The cubic root of 879813 is about 95.8216088156.

The spelling of 879813 in words is "eight hundred seventy-nine thousand, eight hundred thirteen".