9988632 has 24 divisors (see below), whose sum is σ = 27052740. Its totient is φ = 3329520.

The previous prime is 9988609. The next prime is 9988633. The reversal of 9988632 is 2368899.

9988632 is a `hidden beast` number, since 9 + 9 + 8 + 8 + 632 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9988633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69294 + ... + 69437.

Almost surely, 2^9988632 is an apocalyptic number.

It is an amenable number.

9988632 is an abundant number, since it is smaller than the sum of its proper divisors (17064108).

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

9988632 is a wasteful number, since it uses less digits than its factorization.

9988632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138743 (or 138736 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 9988632 is about 3160.4797104237. The cubic root of 9988632 is about 215.3617993362.

The spelling of 9988632 in words is "nine million, nine hundred eighty-eight thousand, six hundred thirty-two".