28862227 has 2 divisors, whose sum is σ = 28862228. Its totient is φ = 28862226.

The previous prime is 28862213. The next prime is 28862231. The reversal of 28862227 is 72226882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28862227 - 2¹⁵ = 28829459 is a prime.

It is not a weakly prime, because it can be changed into another prime (28862027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14431113 + 14431114.

It is an arithmetic number, because the mean of its divisors is an integer number (14431114).

Almost surely, 2^28862227 is an apocalyptic number.

28862227 is a deficient number, since it is larger than the sum of its proper divisors (1).

28862227 is an equidigital number, since it uses as much as digits as its factorization.

28862227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43008, while the sum is 37.

The square root of 28862227 is about 5372.3576761046. The cubic root of 28862227 is about 306.7443786724.

The spelling of 28862227 in words is "twenty-eight million, eight hundred sixty-two thousand, two hundred twenty-seven".