8722556901 has 16 divisors (see below), whose sum is σ = 13078000320. Its totient is φ = 5744975760.

The previous prime is 8722556819. The next prime is 8722556903. The reversal of 8722556901 is 1096552278.

8722556901 is a `hidden beast` number, since 8 + 7 + 2 + 2 + 556 + 90 + 1 = 666.

It is not a de Polignac number, because 8722556901 - 2²⁶ = 8655448037 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8722556903) 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, 1943890 + ... + 1948371.

It is an arithmetic number, because the mean of its divisors is an integer number (817375020).

Almost surely, 2^8722556901 is an apocalyptic number.

It is an amenable number.

8722556901 is a deficient number, since it is larger than the sum of its proper divisors (4355443419).

8722556901 is a wasteful number, since it uses less digits than its factorization.

8722556901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3892353 (or 3892347 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 8722556901 is about 93394.6299366297. The cubic root of 8722556901 is about 2058.4860920304.

The spelling of 8722556901 in words is "eight billion, seven hundred twenty-two million, five hundred fifty-six thousand, nine hundred one".