228655 has 16 divisors (see below), whose sum is σ = 322560. Its totient is φ = 152352.

The previous prime is 228647. The next prime is 228677. The reversal of 228655 is 556822.

It is a cyclic number.

It is not a de Polignac number, because 228655 - 2³ = 228647 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1576 + ... + 1714.

It is an arithmetic number, because the mean of its divisors is an integer number (20160).

2²²⁸⁶⁵⁵ is an apocalyptic number.

228655 is a deficient number, since it is larger than the sum of its proper divisors (93905).

228655 is a wasteful number, since it uses less digits than its factorization.

228655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198.

The product of its digits is 4800, while the sum is 28.

The square root of 228655 is about 478.1788368383. The cubic root of 228655 is about 61.1495925371.

The spelling of 228655 in words is "two hundred twenty-eight thousand, six hundred fifty-five".