228223 has 2 divisors, whose sum is σ = 228224. Its totient is φ = 228222.

The previous prime is 228211. The next prime is 228233. The reversal of 228223 is 322822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228223 - 2¹⁷ = 97151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114111 + 114112.

It is an arithmetic number, because the mean of its divisors is an integer number (114112).

2²²⁸²²³ is an apocalyptic number.

228223 is a deficient number, since it is larger than the sum of its proper divisors (1).

228223 is an equidigital number, since it uses as much as digits as its factorization.

228223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 19.

The square root of 228223 is about 477.7269094368. The cubic root of 228223 is about 61.1110580961. Note that the first 3 decimals are identical.

The spelling of 228223 in words is "two hundred twenty-eight thousand, two hundred twenty-three".