889225812 has 72 divisors (see below), whose sum is σ = 2292282720. Its totient is φ = 290594880.

The previous prime is 889225787. The next prime is 889225861. The reversal of 889225812 is 218522988.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 414262 + ... + 416402.

It is an arithmetic number, because the mean of its divisors is an integer number (31837260).

Almost surely, 2^889225812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 889225812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1146141360).

889225812 is an abundant number, since it is smaller than the sum of its proper divisors (1403056908).

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

889225812 is a wasteful number, since it uses less digits than its factorization.

889225812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373 (or 2368 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 889225812 is about 29819.8895370187. The cubic root of 889225812 is about 961.6211799958.

The spelling of 889225812 in words is "eight hundred eighty-nine million, two hundred twenty-five thousand, eight hundred twelve".