872189994 has 16 divisors (see below), whose sum is σ = 1878563232. Its totient is φ = 268366128.

The previous prime is 872189977. The next prime is 872190013. The reversal of 872189994 is 499981278.

872189994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5590884 + ... + 5591039.

It is an arithmetic number, because the mean of its divisors is an integer number (117410202).

Almost surely, 2^872189994 is an apocalyptic number.

872189994 is an abundant number, since it is smaller than the sum of its proper divisors (1006373238).

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

872189994 is a wasteful number, since it uses less digits than its factorization.

872189994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11181941.

The product of its digits is 2612736, while the sum is 57.

The square root of 872189994 is about 29532.8629496024. The cubic root of 872189994 is about 955.4406175607.

The spelling of 872189994 in words is "eight hundred seventy-two million, one hundred eighty-nine thousand, nine hundred ninety-four".