989898930 has 48 divisors (see below), whose sum is σ = 2587118040. Its totient is φ = 262600704.

The previous prime is 989898929. The next prime is 989898941. The reversal of 989898930 is 39898989.

It can be written as a sum of positive squares in 4 ways, for example, as 851530761 + 138368169 = 29181^2 + 11763^2 .

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11125 + ... + 45864.

Almost surely, 2^989898930 is an apocalyptic number.

989898930 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

989898930 is an abundant number, since it is smaller than the sum of its proper divisors (1597219110).

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

989898930 is a wasteful number, since it uses less digits than its factorization.

989898930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57195 (or 57192 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 63.

The square root of 989898930 is about 31462.6592963786. The cubic root of 989898930 is about 996.6215757699.

The spelling of 989898930 in words is "nine hundred eighty-nine million, eight hundred ninety-eight thousand, nine hundred thirty".