989980732 has 24 divisors (see below), whose sum is σ = 1916161856. Its totient is φ = 444564288.

The previous prime is 989980727. The next prime is 989980759. The reversal of 989980732 is 237089989.

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, 255348 + ... + 259195.

Almost surely, 2^989980732 is an apocalyptic number.

It is an amenable number.

989980732 is a deficient number, since it is larger than the sum of its proper divisors (926181124).

989980732 is a wasteful number, since it uses less digits than its factorization.

989980732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514597 (or 514595 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 55.

The square root of 989980732 is about 31463.9592549952. The cubic root of 989980732 is about 996.6490275262.

The spelling of 989980732 in words is "nine hundred eighty-nine million, nine hundred eighty thousand, seven hundred thirty-two".