9987732 has 24 divisors (see below), whose sum is σ = 25894400. Its totient is φ = 3329208.

The previous prime is 9987709. The next prime is 9987737. The reversal of 9987732 is 2377899.

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 (9987737) 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, 46132 + ... + 46347.

Almost surely, 2^9987732 is an apocalyptic number.

It is an amenable number.

9987732 is an abundant number, since it is smaller than the sum of its proper divisors (15906668).

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

9987732 is a wasteful number, since it uses less digits than its factorization.

9987732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92492 (or 92484 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 9987732 is about 3160.3373237678. The cubic root of 9987732 is about 215.3553309348.

The spelling of 9987732 in words is "nine million, nine hundred eighty-seven thousand, seven hundred thirty-two".