9901232 has 40 divisors (see below), whose sum is σ = 21172752. Its totient is φ = 4448000.

The previous prime is 9901231. The next prime is 9901253. The reversal of 9901232 is 2321099.

It is not an unprimeable number, because it can be changed into a prime (9901231) 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, 17498 + ... + 18054.

Almost surely, 2^9901232 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 9901232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10586376).

9901232 is an abundant number, since it is smaller than the sum of its proper divisors (11271520).

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

9901232 is a wasteful number, since it uses less digits than its factorization.

9901232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677 (or 671 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 9901232 is about 3146.6223160716. The cubic root of 9901232 is about 214.7318235571.

It can be divided in two parts, 990 and 1232, that added together give a palindrome (2222).

The spelling of 9901232 in words is "nine million, nine hundred one thousand, two hundred thirty-two".