204339 has 4 divisors (see below), whose sum is σ = 272456. Its totient is φ = 136224.

The previous prime is 204331. The next prime is 204353. The reversal of 204339 is 933402.

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

It is not a de Polignac number, because 204339 - 2³ = 204331 is a prime.

It is a D-number.

It is a Duffinian number.

204339 is a lucky number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (204331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34054 + ... + 34059.

It is an arithmetic number, because the mean of its divisors is an integer number (68114).

2²⁰⁴³³⁹ is an apocalyptic number.

204339 is a deficient number, since it is larger than the sum of its proper divisors (68117).

204339 is an equidigital number, since it uses as much as digits as its factorization.

204339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68116.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 204339 is about 452.0387151561. The cubic root of 204339 is about 58.9002431860.

The spelling of 204339 in words is "two hundred four thousand, three hundred thirty-nine".