9987357240 has 128 divisors (see below), whose sum is σ = 38047104000. Its totient is φ = 2282822784.

The previous prime is 9987357227. The next prime is 9987357253. The reversal of 9987357240 is 427537899.

9987357240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9987357227) and next prime (9987357253).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 652980 + ... + 668099.

It is an arithmetic number, because the mean of its divisors is an integer number (297243000).

Almost surely, 2^9987357240 is an apocalyptic number.

9987357240 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9987357240 is an abundant number, since it is smaller than the sum of its proper divisors (28059746760).

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

9987357240 is a wasteful number, since it uses less digits than its factorization.

9987357240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321106 (or 1321096 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The square root of 9987357240 is about 99936.7662074374. The cubic root of 9987357240 is about 2153.5263737794.

The spelling of 9987357240 in words is "nine billion, nine hundred eighty-seven million, three hundred fifty-seven thousand, two hundred forty".