229705 has 8 divisors (see below), whose sum is σ = 315072. Its totient is φ = 157488.

The previous prime is 229703. The next prime is 229711. The reversal of 229705 is 507922.

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 229705 - 2¹ = 229703 is a prime.

It is a Duffinian number.

229705 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 229705.

It is not an unprimeable number, because it can be changed into a prime (229703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3247 + ... + 3316.

It is an arithmetic number, because the mean of its divisors is an integer number (39384).

2²²⁹⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

229705 is a deficient number, since it is larger than the sum of its proper divisors (85367).

229705 is an equidigital number, since it uses as much as digits as its factorization.

229705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6575.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 229705 is about 479.2754948879. The cubic root of 229705 is about 61.2430507179.

The spelling of 229705 in words is "two hundred twenty-nine thousand, seven hundred five".