204866223 has 4 divisors (see below), whose sum is σ = 273154968. Its totient is φ = 136577480.

The previous prime is 204866213. The next prime is 204866257. The reversal of 204866223 is 322668402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 204866223 - 2⁵ = 204866191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204866213) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 34144368 + ... + 34144373.

It is an arithmetic number, because the mean of its divisors is an integer number (68288742).

Almost surely, 2^204866223 is an apocalyptic number.

204866223 is a deficient number, since it is larger than the sum of its proper divisors (68288745).

204866223 is an equidigital number, since it uses as much as digits as its factorization.

204866223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68288744.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 204866223 is about 14313.1486053908. The cubic root of 204866223 is about 589.5085661696.

The spelling of 204866223 in words is "two hundred four million, eight hundred sixty-six thousand, two hundred twenty-three".