28314271 has 2 divisors, whose sum is σ = 28314272. Its totient is φ = 28314270.

The previous prime is 28314263. The next prime is 28314281. The reversal of 28314271 is 17241382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28314271 - 2³ = 28314263 is a prime.

It is a super-2 number, since 2×28314271² = 1603395884522882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28314211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14157135 + 14157136.

It is an arithmetic number, because the mean of its divisors is an integer number (14157136).

Almost surely, 2^28314271 is an apocalyptic number.

28314271 is a deficient number, since it is larger than the sum of its proper divisors (1).

28314271 is an equidigital number, since it uses as much as digits as its factorization.

28314271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 28.

The square root of 28314271 is about 5321.1155785230. The cubic root of 28314271 is about 304.7907585726.

The spelling of 28314271 in words is "twenty-eight million, three hundred fourteen thousand, two hundred seventy-one".