8572229 has 2 divisors, whose sum is σ = 8572230. Its totient is φ = 8572228.

The previous prime is 8572219. The next prime is 8572237. The reversal of 8572229 is 9222758.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8567329 + 4900 = 2927^2 + 70^2 .

It is a cyclic number.

It is not a de Polignac number, because 8572229 - 2⁸ = 8571973 is a prime.

It is a super-2 number, since 2×8572229² = 146966220056882, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8572219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4286114 + 4286115.

It is an arithmetic number, because the mean of its divisors is an integer number (4286115).

Almost surely, 2^8572229 is an apocalyptic number.

It is an amenable number.

8572229 is a deficient number, since it is larger than the sum of its proper divisors (1).

8572229 is an equidigital number, since it uses as much as digits as its factorization.

8572229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 35.

The square root of 8572229 is about 2927.8369148571. The cubic root of 8572229 is about 204.6591918080.

The spelling of 8572229 in words is "eight million, five hundred seventy-two thousand, two hundred twenty-nine".