205834 has 8 divisors (see below), whose sum is σ = 312228. Its totient is φ = 101760.

The previous prime is 205823. The next prime is 205837. The reversal of 205834 is 438502.

It can be written as a sum of positive squares in 2 ways, for example, as 205209 + 625 = 453^2 + 25^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205837) 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, 337 + ... + 724.

2²⁰⁵⁸³⁴ is an apocalyptic number.

205834 is a deficient number, since it is larger than the sum of its proper divisors (106394).

205834 is a wasteful number, since it uses less digits than its factorization.

205834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 205834 is about 453.6893210116. The cubic root of 205834 is about 59.0435377198.

The spelling of 205834 in words is "two hundred five thousand, eight hundred thirty-four".