228589 has 8 divisors (see below), whose sum is σ = 246240. Its totient is φ = 211536.

The previous prime is 228587. The next prime is 228593. The reversal of 228589 is 985822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228589 - 2¹ = 228587 is a prime.

It is a super-3 number, since 3×228589³ = 35833335678901407, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 894 + ... + 1120.

It is an arithmetic number, because the mean of its divisors is an integer number (30780).

2²²⁸⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

228589 is a deficient number, since it is larger than the sum of its proper divisors (17651).

228589 is a wasteful number, since it uses less digits than its factorization.

228589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299.

The product of its digits is 11520, while the sum is 34.

The square root of 228589 is about 478.1098200205. The cubic root of 228589 is about 61.1437084738.

The spelling of 228589 in words is "two hundred twenty-eight thousand, five hundred eighty-nine".