9987387630 has 64 divisors (see below), whose sum is σ = 27686976768. Its totient is φ = 2278760960.

The previous prime is 9987387607. The next prime is 9987387649. The reversal of 9987387630 is 367837899.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 884532 + ... + 895751.

It is an arithmetic number, because the mean of its divisors is an integer number (432609012).

Almost surely, 2^9987387630 is an apocalyptic number.

9987387630 is an abundant number, since it is smaller than the sum of its proper divisors (17699589138).

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

9987387630 is a wasteful number, since it uses less digits than its factorization.

9987387630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780321.

The product of its (nonzero) digits is 13716864, while the sum is 60.

The square root of 9987387630 is about 99936.9182534663. The cubic root of 9987387630 is about 2153.5285580609.

The spelling of 9987387630 in words is "nine billion, nine hundred eighty-seven million, three hundred eighty-seven thousand, six hundred thirty".