879013844 has 12 divisors (see below), whose sum is σ = 1538882100. Its totient is φ = 439333248.

The previous prime is 879013819. The next prime is 879013859. The reversal of 879013844 is 448310978.

It can be written as a sum of positive squares in 2 ways, for example, as 211411600 + 667602244 = 14540^2 + 25838^2 .

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 879013795 and 879013804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31679 + ... + 52550.

It is an arithmetic number, because the mean of its divisors is an integer number (128240175).

Almost surely, 2^879013844 is an apocalyptic number.

It is an amenable number.

879013844 is a deficient number, since it is larger than the sum of its proper divisors (659868256).

879013844 is a wasteful number, since it uses less digits than its factorization.

879013844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86842 (or 86840 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 879013844 is about 29648.1676330933. The cubic root of 879013844 is about 957.9258764453.

The spelling of 879013844 in words is "eight hundred seventy-nine million, thirteen thousand, eight hundred forty-four".