206806 has 8 divisors (see below), whose sum is σ = 316224. Its totient is φ = 101400.

The previous prime is 206803. The next prime is 206807. The reversal of 206806 is 608602.

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 (206803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 870 + ... + 1081.

It is an arithmetic number, because the mean of its divisors is an integer number (39528).

2²⁰⁶⁸⁰⁶ is an apocalyptic number.

206806 is a deficient number, since it is larger than the sum of its proper divisors (109418).

206806 is a wasteful number, since it uses less digits than its factorization.

206806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 206806 is about 454.7592769807. The cubic root of 206806 is about 59.1363312942.

The spelling of 206806 in words is "two hundred six thousand, eight hundred six".