22857271 has 2 divisors, whose sum is σ = 22857272. Its totient is φ = 22857270.

The previous prime is 22857259. The next prime is 22857281. The reversal of 22857271 is 17275822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22857271 - 2¹¹ = 22855223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22857221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11428635 + 11428636.

It is an arithmetic number, because the mean of its divisors is an integer number (11428636).

Almost surely, 2^22857271 is an apocalyptic number.

22857271 is a deficient number, since it is larger than the sum of its proper divisors (1).

22857271 is an equidigital number, since it uses as much as digits as its factorization.

22857271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15680, while the sum is 34.

The square root of 22857271 is about 4780.9278388196. The cubic root of 22857271 is about 283.7972127381.

The spelling of 22857271 in words is "twenty-two million, eight hundred fifty-seven thousand, two hundred seventy-one".