8939733621 has 16 divisors (see below), whose sum is σ = 14670332544. Its totient is φ = 4715463744.

The previous prime is 8939733601. The next prime is 8939733623. The reversal of 8939733621 is 1263379398.

It is not a de Polignac number, because 8939733621 - 2⁵ = 8939733589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8939733623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16372866 + ... + 16373411.

It is an arithmetic number, because the mean of its divisors is an integer number (916895784).

Almost surely, 2^8939733621 is an apocalyptic number.

It is an amenable number.

8939733621 is a deficient number, since it is larger than the sum of its proper divisors (5730598923).

8939733621 is a wasteful number, since it uses less digits than its factorization.

8939733621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32746300.

The product of its digits is 1469664, while the sum is 51.

The square root of 8939733621 is about 94550.1645741561. The cubic root of 8939733621 is about 2075.4304905242.

The spelling of 8939733621 in words is "eight billion, nine hundred thirty-nine million, seven hundred thirty-three thousand, six hundred twenty-one".