8697222272 has 24 divisors (see below), whose sum is σ = 17328599715. Its totient is φ = 4348083584.

The previous prime is 8697222251. The next prime is 8697222299. The reversal of 8697222272 is 2722227968.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 4348611136 + 4348611136 = 65944^2 + 65944^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=65944.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1050983 + ... + 1059225.

Almost surely, 2^8697222272 is an apocalyptic number.

It is an amenable number.

8697222272 is a deficient number, since it is larger than the sum of its proper divisors (8631377443).

8697222272 is an frugal number, since it uses more digits than its factorization.

8697222272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16500 (or 8245 counting only the distinct ones).

The product of its digits is 677376, while the sum is 47.

The square root of 8697222272 is about 93258.8991571314. The cubic root of 8697222272 is about 2056.4912047348.

The spelling of 8697222272 in words is "eight billion, six hundred ninety-seven million, two hundred twenty-two thousand, two hundred seventy-two".