9987040 has 96 divisors (see below), whose sum is σ = 27808704. Its totient is φ = 3317760.

The previous prime is 9987031. The next prime is 9987071. The reversal of 9987040 is 407899.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41320 + ... + 41560.

It is an arithmetic number, because the mean of its divisors is an integer number (289674).

Almost surely, 2^9987040 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 9987040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13904352).

9987040 is an abundant number, since it is smaller than the sum of its proper divisors (17821664).

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

9987040 is a wasteful number, since it uses less digits than its factorization.

9987040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 9987040 is about 3160.2278398875. The cubic root of 9987040 is about 215.3503571887.

The spelling of 9987040 in words is "nine million, nine hundred eighty-seven thousand, forty".