989608900 has 54 divisors (see below), whose sum is σ = 2498067978. Its totient is φ = 339292800.

The previous prime is 989608883. The next prime is 989608903. The reversal of 989608900 is 9806989.

It can be written as a sum of positive squares in 3 ways, for example, as 3136 + 989605764 = 56^2 + 31458^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (989608903) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 96081 + ... + 105880.

Almost surely, 2^989608900 is an apocalyptic number.

It is an amenable number.

989608900 is an abundant number, since it is smaller than the sum of its proper divisors (1508459078).

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

989608900 is a wasteful number, since it uses less digits than its factorization.

989608900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201989 (or 201975 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 49.

The square root of 989608900 is about 31458.0498441973. The cubic root of 989608900 is about 996.5242330409.

The spelling of 989608900 in words is "nine hundred eighty-nine million, six hundred eight thousand, nine hundred".