28227271 has 2 divisors, whose sum is σ = 28227272. Its totient is φ = 28227270.

The previous prime is 28227247. The next prime is 28227281. The reversal of 28227271 is 17272282.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28227271 - 2⁵ = 28227239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28227211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14113635 + 14113636.

It is an arithmetic number, because the mean of its divisors is an integer number (14113636).

Almost surely, 2^28227271 is an apocalyptic number.

28227271 is a deficient number, since it is larger than the sum of its proper divisors (1).

28227271 is an equidigital number, since it uses as much as digits as its factorization.

28227271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6272, while the sum is 31.

The square root of 28227271 is about 5312.9343116587. The cubic root of 28227271 is about 304.4782659613.

The spelling of 28227271 in words is "twenty-eight million, two hundred twenty-seven thousand, two hundred seventy-one".