872988858 has 48 divisors (see below), whose sum is σ = 2275465920. Its totient is φ = 236297088.

The previous prime is 872988821. The next prime is 872988859. The reversal of 872988858 is 858889278.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 872988795 and 872988804.

It is not an unprimeable number, because it can be changed into a prime (872988859) 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 23 ways as a sum of consecutive naturals, for example, 179935 + ... + 184722.

It is an arithmetic number, because the mean of its divisors is an integer number (47405540).

Almost surely, 2^872988858 is an apocalyptic number.

872988858 is an abundant number, since it is smaller than the sum of its proper divisors (1402477062).

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

872988858 is a wasteful number, since it uses less digits than its factorization.

872988858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364691 (or 364688 counting only the distinct ones).

The product of its digits is 20643840, while the sum is 63.

The square root of 872988858 is about 29546.3848550038. The cubic root of 872988858 is about 955.7322337622.

The spelling of 872988858 in words is "eight hundred seventy-two million, nine hundred eighty-eight thousand, eight hundred fifty-eight".