879121884 has 48 divisors (see below), whose sum is σ = 2174473728. Its totient is φ = 275482368.

The previous prime is 879121883. The next prime is 879121891. The reversal of 879121884 is 488121978.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879121883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223059 + ... + 226965.

It is an arithmetic number, because the mean of its divisors is an integer number (45301536).

Almost surely, 2^879121884 is an apocalyptic number.

It is an amenable number.

879121884 is an abundant number, since it is smaller than the sum of its proper divisors (1295351844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

879121884 is a wasteful number, since it uses less digits than its factorization.

879121884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5034 (or 5032 counting only the distinct ones).

The product of its digits is 258048, while the sum is 48.

The square root of 879121884 is about 29649.9896121398. The cubic root of 879121884 is about 957.9651212090.

The spelling of 879121884 in words is "eight hundred seventy-nine million, one hundred twenty-one thousand, eight hundred eighty-four".