683220668 has 48 divisors (see below), whose sum is σ = 1321094880. Its totient is φ = 307217664.

The previous prime is 683220653. The next prime is 683220689. The reversal of 683220668 is 866022386.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 431903 + ... + 433481.

It is an arithmetic number, because the mean of its divisors is an integer number (27522810).

Almost surely, 2^683220668 is an apocalyptic number.

It is an amenable number.

683220668 is a deficient number, since it is larger than the sum of its proper divisors (637874212).

683220668 is a wasteful number, since it uses less digits than its factorization.

683220668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806 (or 1804 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 683220668 is about 26138.4901629761. The cubic root of 683220668 is about 880.7520551073.

The spelling of 683220668 in words is "six hundred eighty-three million, two hundred twenty thousand, six hundred sixty-eight".