228273 has 4 divisors (see below), whose sum is σ = 304368. Its totient is φ = 152180.

The previous prime is 228257. The next prime is 228281. The reversal of 228273 is 372822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 228273 - 2⁴ = 228257 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (228203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38043 + ... + 38048.

It is an arithmetic number, because the mean of its divisors is an integer number (76092).

2²²⁸²⁷³ is an apocalyptic number.

It is an amenable number.

228273 is a deficient number, since it is larger than the sum of its proper divisors (76095).

228273 is an equidigital number, since it uses as much as digits as its factorization.

228273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76094.

The product of its digits is 1344, while the sum is 24.

The square root of 228273 is about 477.7792377239. The cubic root of 228273 is about 61.1155205879.

The spelling of 228273 in words is "two hundred twenty-eight thousand, two hundred seventy-three".