8972908722 has 54 divisors (see below), whose sum is σ = 19751782557. Its totient is φ = 2943948912.

The previous prime is 8972908687. The next prime is 8972908727. The reversal of 8972908722 is 2278092798.

8972908722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6711050241 + 2261858481 = 81921^2 + 47559^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=66981.

It is not an unprimeable number, because it can be changed into a prime (8972908727) 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 26 ways as a sum of consecutive naturals, for example, 33356404 + ... + 33356672.

Almost surely, 2^8972908722 is an apocalyptic number.

8972908722 is an abundant number, since it is smaller than the sum of its proper divisors (10778873835).

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

8972908722 is an equidigital number, since it uses as much as digits as its factorization.

8972908722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The square root of 8972908722 is about 94725.4386213123. The cubic root of 8972908722 is about 2077.9946094779.

The spelling of 8972908722 in words is "eight billion, nine hundred seventy-two million, nine hundred eight thousand, seven hundred twenty-two".