683668 has 12 divisors (see below), whose sum is σ = 1214752. Its totient is φ = 336600.

The previous prime is 683653. The next prime is 683681. The reversal of 683668 is 866386.

683668 is nontrivially palindromic in base 15.

683668 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1008 + ... + 1543.

2⁶⁸³⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

683668 is a deficient number, since it is larger than the sum of its proper divisors (531084).

683668 is a wasteful number, since it uses less digits than its factorization.

683668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622 (or 2620 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 683668 is about 826.8421856679. The cubic root of 683668 is about 88.0944234414.

The spelling of 683668 in words is "six hundred eighty-three thousand, six hundred sixty-eight".