8913657990 has 32 divisors (see below), whose sum is σ = 21395443680. Its totient is φ = 2376679424.

The previous prime is 8913657979. The next prime is 8913658003. The reversal of 8913657990 is 997563198.

It is a self number, because there is not a number n which added to its sum of digits gives 8913657990.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340696 + ... + 365924.

It is an arithmetic number, because the mean of its divisors is an integer number (668607615).

Almost surely, 2^8913657990 is an apocalyptic number.

8913657990 is an abundant number, since it is smaller than the sum of its proper divisors (12481785690).

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

8913657990 is a wasteful number, since it uses less digits than its factorization.

8913657990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37016.

The product of its (nonzero) digits is 3674160, while the sum is 57.

The square root of 8913657990 is about 94412.1707726287. The cubic root of 8913657990 is about 2073.4106367984.

The spelling of 8913657990 in words is "eight billion, nine hundred thirteen million, six hundred fifty-seven thousand, nine hundred ninety".