208668 has 12 divisors (see below), whose sum is σ = 486920. Its totient is φ = 69552.

The previous prime is 208667. The next prime is 208673. The reversal of 208668 is 866802.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208667) 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, 8683 + ... + 8706.

2²⁰⁸⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

208668 is an abundant number, since it is smaller than the sum of its proper divisors (278252).

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

208668 is a wasteful number, since it uses less digits than its factorization.

208668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17396 (or 17394 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 208668 is about 456.8019264408. The cubic root of 208668 is about 59.3132813892.

The spelling of 208668 in words is "two hundred eight thousand, six hundred sixty-eight".