206676 has 18 divisors (see below), whose sum is σ = 522522. Its totient is φ = 68880.

The previous prime is 206651. The next prime is 206699. The reversal of 206676 is 676602.

206676 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 176400 + 30276 = 420^2 + 174^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

206676 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2835 + ... + 2906.

It is an arithmetic number, because the mean of its divisors is an integer number (29029).

2²⁰⁶⁶⁷⁶ is an apocalyptic number.

It is an amenable number.

206676 is an abundant number, since it is smaller than the sum of its proper divisors (315846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206676 is a wasteful number, since it uses less digits than its factorization.

206676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5751 (or 5746 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 206676 is about 454.6163217484. The cubic root of 206676 is about 59.1239374976.

The spelling of 206676 in words is "two hundred six thousand, six hundred seventy-six".