989675520 has 120 divisors (see below), whose sum is σ = 3167651424. Its totient is φ = 263847936.

The previous prime is 989675513. The next prime is 989675521. The reversal of 989675520 is 25576989.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989675521) 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, 243747 + ... + 247773.

Almost surely, 2^989675520 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 989675520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1583825712).

989675520 is an abundant number, since it is smaller than the sum of its proper divisors (2177975904).

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

989675520 is an equidigital number, since it uses as much as digits as its factorization.

989675520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4063 (or 4037 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 51.

The square root of 989675520 is about 31459.1086968465. The cubic root of 989675520 is about 996.5465943848.

The spelling of 989675520 in words is "nine hundred eighty-nine million, six hundred seventy-five thousand, five hundred twenty".