228432227 has 2 divisors, whose sum is σ = 228432228. Its totient is φ = 228432226.

The previous prime is 228432209. The next prime is 228432241. The reversal of 228432227 is 722234822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228432227 - 2⁶ = 228432163 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 228432193 and 228432202.

It is not a weakly prime, because it can be changed into another prime (228432277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114216113 + 114216114.

It is an arithmetic number, because the mean of its divisors is an integer number (114216114).

Almost surely, 2^228432227 is an apocalyptic number.

228432227 is a deficient number, since it is larger than the sum of its proper divisors (1).

228432227 is an equidigital number, since it uses as much as digits as its factorization.

228432227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 32.

The square root of 228432227 is about 15113.9745599892. The cubic root of 228432227 is about 611.2972723117.

The spelling of 228432227 in words is "two hundred twenty-eight million, four hundred thirty-two thousand, two hundred twenty-seven".