208906 has 8 divisors (see below), whose sum is σ = 318240. Its totient is φ = 102828.

The previous prime is 208891. The next prime is 208907. The reversal of 208906 is 609802.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (208907) 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, 646 + ... + 913.

It is an arithmetic number, because the mean of its divisors is an integer number (39780).

2²⁰⁸⁹⁰⁶ is an apocalyptic number.

208906 is a deficient number, since it is larger than the sum of its proper divisors (109334).

208906 is a wasteful number, since it uses less digits than its factorization.

208906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 208906 is about 457.0623589840. The cubic root of 208906 is about 59.3358230941.

The spelling of 208906 in words is "two hundred eight thousand, nine hundred six".