9987492 has 12 divisors (see below), whose sum is σ = 23304176. Its totient is φ = 3329160.

The previous prime is 9987457. The next prime is 9987493. The reversal of 9987492 is 2947899.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a d-powerful number, because it can be written as 9⁴ + 9⁴ + 8³ + 7⁸ + 4¹¹ + 9⁴ + 2¹³ .

It is not an unprimeable number, because it can be changed into a prime (9987493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416134 + ... + 416157.

Almost surely, 2^9987492 is an apocalyptic number.

It is an amenable number.

9987492 is an abundant number, since it is smaller than the sum of its proper divisors (13316684).

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

9987492 is a wasteful number, since it uses less digits than its factorization.

9987492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832298 (or 832296 counting only the distinct ones).

The product of its digits is 326592, while the sum is 48.

The square root of 9987492 is about 3160.2993529095. The cubic root of 9987492 is about 215.3536059622.

The spelling of 9987492 in words is "nine million, nine hundred eighty-seven thousand, four hundred ninety-two".