879981420 has 48 divisors (see below), whose sum is σ = 2497713120. Its totient is φ = 231446016.

The previous prime is 879981413. The next prime is 879981433. The reversal of 879981420 is 24189978.

It is a self number, because there is not a number n which added to its sum of digits gives 879981420.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96075 + ... + 104834.

It is an arithmetic number, because the mean of its divisors is an integer number (52035690).

Almost surely, 2^879981420 is an apocalyptic number.

It is an amenable number.

879981420 is an abundant number, since it is smaller than the sum of its proper divisors (1617731700).

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

879981420 is a wasteful number, since it uses less digits than its factorization.

879981420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200994 (or 200992 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 879981420 is about 29664.4807808935. The cubic root of 879981420 is about 958.2772270787.

The spelling of 879981420 in words is "eight hundred seventy-nine million, nine hundred eighty-one thousand, four hundred twenty".