889923870 has 192 divisors, whose sum is σ = 2641766400. Its totient is φ = 205873920.

The previous prime is 889923857. The next prime is 889923941. The reversal of 889923870 is 78329988.

889923870 = T₂₂₀ + T₂₂₁ + ... + T₁₇₄₈.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3990579 + ... + 3990801.

It is an arithmetic number, because the mean of its divisors is an integer number (13759200).

Almost surely, 2^889923870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 889923870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1320883200).

889923870 is an abundant number, since it is smaller than the sum of its proper divisors (1751842530).

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

889923870 is a wasteful number, since it uses less digits than its factorization.

889923870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 889923870 is about 29831.5918113667. The cubic root of 889923870 is about 961.8727440616.

The spelling of 889923870 in words is "eight hundred eighty-nine million, nine hundred twenty-three thousand, eight hundred seventy".