8572222 has 16 divisors (see below), whose sum is σ = 13242240. Its totient is φ = 4159512.

The previous prime is 8572219. The next prime is 8572229. The reversal of 8572222 is 2222758.

8572222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 8⁴ + 5⁶ + 7² + 2² + 2¹⁵ + 2¹⁷ + 2²³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8572229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22429 + ... + 22807.

It is an arithmetic number, because the mean of its divisors is an integer number (827640).

Almost surely, 2^8572222 is an apocalyptic number.

8572222 is a deficient number, since it is larger than the sum of its proper divisors (4670018).

8572222 is a wasteful number, since it uses less digits than its factorization.

8572222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687.

The product of its digits is 4480, while the sum is 28.

The square root of 8572222 is about 2927.8357194351. The cubic root of 8572222 is about 204.6591361004.

The spelling of 8572222 in words is "eight million, five hundred seventy-two thousand, two hundred twenty-two".