228937 has 4 divisors (see below), whose sum is σ = 233856. Its totient is φ = 224020.

The previous prime is 228929. The next prime is 228953. The reversal of 228937 is 739822.

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 228937 - 2³ = 228929 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228899 and 228908.

It is not an unprimeable number, because it can be changed into a prime (228337) 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 in 3 ways as a sum of consecutive naturals, for example, 2389 + ... + 2482.

It is an arithmetic number, because the mean of its divisors is an integer number (58464).

2²²⁸⁹³⁷ is an apocalyptic number.

It is an amenable number.

228937 is a deficient number, since it is larger than the sum of its proper divisors (4919).

228937 is an equidigital number, since it uses as much as digits as its factorization.

228937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4918.

The product of its digits is 6048, while the sum is 31.

The square root of 228937 is about 478.4736147375. The cubic root of 228937 is about 61.1747207884.

The spelling of 228937 in words is "two hundred twenty-eight thousand, nine hundred thirty-seven".