989839032 has 128 divisors (see below), whose sum is σ = 3084748800. Its totient is φ = 257707008.

The previous prime is 989838947. The next prime is 989839051. The reversal of 989839032 is 230938989.

It is a congruent 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, 169668 + ... + 175404.

It is an arithmetic number, because the mean of its divisors is an integer number (24099600).

Almost surely, 2^989839032 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 989839032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1542374400).

989839032 is an abundant number, since it is smaller than the sum of its proper divisors (2094909768).

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

989839032 is a wasteful number, since it uses less digits than its factorization.

989839032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5845 (or 5841 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 51.

The square root of 989839032 is about 31461.7073916849. The cubic root of 989839032 is about 996.6014737704.

The spelling of 989839032 in words is "nine hundred eighty-nine million, eight hundred thirty-nine thousand, thirty-two".