8722039836 has 12 divisors (see below), whose sum is σ = 20351426312. Its totient is φ = 2907346608.

The previous prime is 8722039831. The next prime is 8722039849. The reversal of 8722039836 is 6389302278.

It is a happy number.

8722039836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8722039831) 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 3 ways as a sum of consecutive naturals, for example, 363418315 + ... + 363418338.

Almost surely, 2^8722039836 is an apocalyptic number.

It is an amenable number.

8722039836 is an abundant number, since it is smaller than the sum of its proper divisors (11629386476).

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

8722039836 is a wasteful number, since it uses less digits than its factorization.

8722039836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726836660 (or 726836658 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The square root of 8722039836 is about 93391.8617225291. The cubic root of 8722039836 is about 2058.4454161844.

The spelling of 8722039836 in words is "eight billion, seven hundred twenty-two million, thirty-nine thousand, eight hundred thirty-six".