989147020 has 12 divisors (see below), whose sum is σ = 2077208784. Its totient is φ = 395658800.

The previous prime is 989146999. The next prime is 989147069. The reversal of 989147020 is 20741989.

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, 24728656 + ... + 24728695.

It is an arithmetic number, because the mean of its divisors is an integer number (173100732).

Almost surely, 2^989147020 is an apocalyptic number.

It is an amenable number.

989147020 is an abundant number, since it is smaller than the sum of its proper divisors (1088061764).

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

989147020 is a wasteful number, since it uses less digits than its factorization.

989147020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49457360 (or 49457358 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 989147020 is about 31450.7077821788. The cubic root of 989147020 is about 996.3691730506.

The spelling of 989147020 in words is "nine hundred eighty-nine million, one hundred forty-seven thousand, twenty".