989798032 has 20 divisors (see below), whose sum is σ = 1920460540. Its totient is φ = 494195328.

The previous prime is 989798023. The next prime is 989798057. The reversal of 989798032 is 230897989.

It can be written as a sum of positive squares in 2 ways, for example, as 144384256 + 845413776 = 12016^2 + 29076^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32283 + ... + 54970.

It is an arithmetic number, because the mean of its divisors is an integer number (96023027).

Almost surely, 2^989798032 is an apocalyptic number.

It is an amenable number.

989798032 is a deficient number, since it is larger than the sum of its proper divisors (930662508).

989798032 is a wasteful number, since it uses less digits than its factorization.

989798032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87970 (or 87964 counting only the distinct ones).

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

The square root of 989798032 is about 31461.0557991940. The cubic root of 989798032 is about 996.5877135450.

The spelling of 989798032 in words is "nine hundred eighty-nine million, seven hundred ninety-eight thousand, thirty-two".