228427 has 2 divisors, whose sum is σ = 228428. Its totient is φ = 228426.

The previous prime is 228421. The next prime is 228443. The reversal of 228427 is 724822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228427 - 2³ = 228419 is a prime.

It is not a weakly prime, because it can be changed into another prime (228421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114213 + 114214.

It is an arithmetic number, because the mean of its divisors is an integer number (114214).

2²²⁸⁴²⁷ is an apocalyptic number.

228427 is a deficient number, since it is larger than the sum of its proper divisors (1).

228427 is an equidigital number, since it uses as much as digits as its factorization.

228427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1792, while the sum is 25.

The square root of 228427 is about 477.9403728500. The cubic root of 228427 is about 61.1292609696.

The spelling of 228427 in words is "two hundred twenty-eight thousand, four hundred twenty-seven".