872978874 has 16 divisors (see below), whose sum is σ = 1747824480. Its totient is φ = 290681840.

The previous prime is 872978861. The next prime is 872978881. The reversal of 872978874 is 478879278.

It is a happy number.

It is a super-2 number, since 2×872978874² = 1524184228900615752, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71664 + ... + 82955.

It is an arithmetic number, because the mean of its divisors is an integer number (109239030).

Almost surely, 2^872978874 is an apocalyptic number.

872978874 is an abundant number, since it is smaller than the sum of its proper divisors (874845606).

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

872978874 is a wasteful number, since it uses less digits than its factorization.

872978874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155565.

The product of its digits is 12644352, while the sum is 60.

The square root of 872978874 is about 29546.2158998407. The cubic root of 872978874 is about 955.7285903148.

The spelling of 872978874 in words is "eight hundred seventy-two million, nine hundred seventy-eight thousand, eight hundred seventy-four".