206606 has 8 divisors (see below), whose sum is σ = 326280. Its totient is φ = 97848.

The previous prime is 206603. The next prime is 206623. The reversal of 206606 is 606602.

206606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (206603) 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, 2681 + ... + 2756.

It is an arithmetic number, because the mean of its divisors is an integer number (40785).

2²⁰⁶⁶⁰⁶ is an apocalyptic number.

206606 is a deficient number, since it is larger than the sum of its proper divisors (119674).

206606 is a wasteful number, since it uses less digits than its factorization.

206606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5458.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 206606 is about 454.5393272314. The cubic root of 206606 is about 59.1172617620.

The spelling of 206606 in words is "two hundred six thousand, six hundred six".