9989532 has 72 divisors (see below), whose sum is σ = 29484000. Its totient is φ = 2850624.

The previous prime is 9989509. The next prime is 9989569. The reversal of 9989532 is 2359899.

9989532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 11944 + ... + 12752.

It is an arithmetic number, because the mean of its divisors is an integer number (409500).

Almost surely, 2^9989532 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 9989532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14742000).

9989532 is an abundant number, since it is smaller than the sum of its proper divisors (19494468).

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

9989532 is a wasteful number, since it uses less digits than its factorization.

9989532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840 (or 821 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 9989532 is about 3160.6220906651. The cubic root of 9989532 is about 215.3682673489.

The spelling of 9989532 in words is "nine million, nine hundred eighty-nine thousand, five hundred thirty-two".