203668 has 12 divisors (see below), whose sum is σ = 362880. Its totient is φ = 99992.

The previous prime is 203663. The next prime is 203669. The reversal of 203668 is 866302.

203668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203663) by changing a digit.

203668 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 3 ways as a sum of consecutive naturals, for example, 196 + ... + 667.

It is an arithmetic number, because the mean of its divisors is an integer number (30240).

2²⁰³⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

203668 is a deficient number, since it is larger than the sum of its proper divisors (159212).

203668 is a wasteful number, since it uses less digits than its factorization.

203668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926 (or 924 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 203668 is about 451.2959117918. The cubic root of 203668 is about 58.8357010891.

The spelling of 203668 in words is "two hundred three thousand, six hundred sixty-eight".