989898944 has 56 divisors (see below), whose sum is σ = 2047085568. Its totient is φ = 474405120.

The previous prime is 989898941. The next prime is 989898983. The reversal of 989898944 is 449898989.

It is not an unprimeable number, because it can be changed into a prime (989898941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209957 + ... + 214619.

Almost surely, 2^989898944 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 989898944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1023542784).

989898944 is an abundant number, since it is smaller than the sum of its proper divisors (1057186624).

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

989898944 is a wasteful number, since it uses less digits than its factorization.

989898944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4813 (or 4803 counting only the distinct ones).

The product of its digits is 53747712, while the sum is 68.

The square root of 989898944 is about 31462.6595188646. The cubic root of 989898944 is about 996.6215804682.

The spelling of 989898944 in words is "nine hundred eighty-nine million, eight hundred ninety-eight thousand, nine hundred forty-four".