206906 has 8 divisors (see below), whose sum is σ = 354720. Its totient is φ = 88668.

The previous prime is 206897. The next prime is 206909. The reversal of 206906 is 609602.

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

It is not an unprimeable number, because it can be changed into a prime (206909) 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, 7376 + ... + 7403.

It is an arithmetic number, because the mean of its divisors is an integer number (44340).

2²⁰⁶⁹⁰⁶ is an apocalyptic number.

206906 is a deficient number, since it is larger than the sum of its proper divisors (147814).

206906 is a wasteful number, since it uses less digits than its factorization.

206906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14788.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 206906 is about 454.8692119720. The cubic root of 206906 is about 59.1458614500.

The spelling of 206906 in words is "two hundred six thousand, nine hundred six".