889000866 has 64 divisors (see below), whose sum is σ = 2135831040. Its totient is φ = 272471040.

The previous prime is 889000843. The next prime is 889000897. The reversal of 889000866 is 668000988.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187906 + ... + 192578.

It is an arithmetic number, because the mean of its divisors is an integer number (33372360).

Almost surely, 2^889000866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 889000866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1067915520).

889000866 is an abundant number, since it is smaller than the sum of its proper divisors (1246830174).

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

889000866 is a wasteful number, since it uses less digits than its factorization.

889000866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4968 (or 4962 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 889000866 is about 29816.1175541015. The cubic root of 889000866 is about 961.5400865781.

The spelling of 889000866 in words is "eight hundred eighty-nine million, eight hundred sixty-six", and thus it is an aban number.