889439072 has 48 divisors (see below), whose sum is σ = 1840763232. Its totient is φ = 422231040.

The previous prime is 889439063. The next prime is 889439113. The reversal of 889439072 is 270934988.

It is a happy number.

It is a super-2 number, since 2×889439072² = 1582203725600442368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 889439072.

It is a congruent number.

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, 96422 + ... + 105242.

It is an arithmetic number, because the mean of its divisors is an integer number (38349234).

Almost surely, 2^889439072 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 889439072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (920381616).

889439072 is an abundant number, since it is smaller than the sum of its proper divisors (951324160).

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

889439072 is a wasteful number, since it uses less digits than its factorization.

889439072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8991 (or 8983 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 889439072 is about 29823.4651239590. The cubic root of 889439072 is about 961.6980479627.

The spelling of 889439072 in words is "eight hundred eighty-nine million, four hundred thirty-nine thousand, seventy-two".