228929 has 2 divisors, whose sum is σ = 228930. Its totient is φ = 228928.

The previous prime is 228923. The next prime is 228953. The reversal of 228929 is 929822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207025 + 21904 = 455^2 + 148^2 .

It is a cyclic number.

It is not a de Polignac number, because 228929 - 2⁴ = 228913 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 228895 and 228904.

It is not a weakly prime, because it can be changed into another prime (228923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114464 + 114465.

It is an arithmetic number, because the mean of its divisors is an integer number (114465).

2²²⁸⁹²⁹ is an apocalyptic number.

It is an amenable number.

228929 is a deficient number, since it is larger than the sum of its proper divisors (1).

228929 is an equidigital number, since it uses as much as digits as its factorization.

228929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 32.

The square root of 228929 is about 478.4652547469. The cubic root of 228929 is about 61.1740082146.

The spelling of 228929 in words is "two hundred twenty-eight thousand, nine hundred twenty-nine".