229217 has 2 divisors, whose sum is σ = 229218. Its totient is φ = 229216.

The previous prime is 229213. The next prime is 229223. The reversal of 229217 is 712922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132496 + 96721 = 364^2 + 311^2 .

It is a cyclic number.

It is not a de Polignac number, because 229217 - 2² = 229213 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 229192 and 229201.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 229217.

It is not a weakly prime, because it can be changed into another prime (229213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114608 + 114609.

It is an arithmetic number, because the mean of its divisors is an integer number (114609).

2²²⁹²¹⁷ is an apocalyptic number.

It is an amenable number.

229217 is a deficient number, since it is larger than the sum of its proper divisors (1).

229217 is an equidigital number, since it uses as much as digits as its factorization.

229217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 23.

The square root of 229217 is about 478.7661224439. The cubic root of 229217 is about 61.1996504174.

The spelling of 229217 in words is "two hundred twenty-nine thousand, two hundred seventeen".