9938630787 has 8 divisors (see below), whose sum is σ = 13419248640. Its totient is φ = 6541883400.

The previous prime is 9938630777. The next prime is 9938630837. The reversal of 9938630787 is 7870368399.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9938630787 - 2⁸ = 9938630531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9938630787.

It is not an unprimeable number, because it can be changed into a prime (9938630777) 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, 20967339 + ... + 20967812.

It is an arithmetic number, because the mean of its divisors is an integer number (1677406080).

Almost surely, 2^9938630787 is an apocalyptic number.

9938630787 is a deficient number, since it is larger than the sum of its proper divisors (3480617853).

9938630787 is a wasteful number, since it uses less digits than its factorization.

9938630787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41935233.

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

The square root of 9938630787 is about 99692.6817123504. The cubic root of 9938630787 is about 2150.0184449112.

The spelling of 9938630787 in words is "nine billion, nine hundred thirty-eight million, six hundred thirty thousand, seven hundred eighty-seven".