8722904765 has 16 divisors (see below), whose sum is σ = 11157620400. Its totient is φ = 6523745280.

The previous prime is 8722904717. The next prime is 8722904797. The reversal of 8722904765 is 5674092278.

It can be written as a sum of positive squares in 8 ways, for example, as 1765176196 + 6957728569 = 42014^2 + 83413^2 .

It is not a de Polignac number, because 8722904765 - 2¹⁰ = 8722903741 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 331706 + ... + 357035.

It is an arithmetic number, because the mean of its divisors is an integer number (697351275).

Almost surely, 2^8722904765 is an apocalyptic number.

8722904765 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8722904765 is a deficient number, since it is larger than the sum of its proper divisors (2434715635).

8722904765 is a wasteful number, since it uses less digits than its factorization.

8722904765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688912.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The square root of 8722904765 is about 93396.4922521183. The cubic root of 8722904765 is about 2058.5134564716.

The spelling of 8722904765 in words is "eight billion, seven hundred twenty-two million, nine hundred four thousand, seven hundred sixty-five".