9790987938 has 16 divisors (see below), whose sum is σ = 19695168576. Its totient is φ = 3244797200.

The previous prime is 9790987937. The next prime is 9790987949. The reversal of 9790987938 is 8397890979.

9790987938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9790987938² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9790987931) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4715238 + ... + 4717313.

It is an arithmetic number, because the mean of its divisors is an integer number (1230948036).

Almost surely, 2^9790987938 is an apocalyptic number.

9790987938 is an abundant number, since it is smaller than the sum of its proper divisors (9904180638).

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

9790987938 is a wasteful number, since it uses less digits than its factorization.

9790987938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9432729.

The product of its (nonzero) digits is 61725888, while the sum is 69.

The square root of 9790987938 is about 98949.4211099792. The cubic root of 9790987938 is about 2139.3187876025.

The spelling of 9790987938 in words is "nine billion, seven hundred ninety million, nine hundred eighty-seven thousand, nine hundred thirty-eight".