28986227 has 2 divisors, whose sum is σ = 28986228. Its totient is φ = 28986226.

The previous prime is 28986211. The next prime is 28986253. The reversal of 28986227 is 72268982.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28986227 - 2⁴ = 28986211 is a prime.

It is not a weakly prime, because it can be changed into another prime (28986427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14493113 + 14493114.

It is an arithmetic number, because the mean of its divisors is an integer number (14493114).

Almost surely, 2^28986227 is an apocalyptic number.

28986227 is a deficient number, since it is larger than the sum of its proper divisors (1).

28986227 is an equidigital number, since it uses as much as digits as its factorization.

28986227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 44.

The square root of 28986227 is about 5383.8858643177. The cubic root of 28986227 is about 307.1830369131.

The spelling of 28986227 in words is "twenty-eight million, nine hundred eighty-six thousand, two hundred twenty-seven".