683668438 has 8 divisors (see below), whose sum is σ = 1049351688. Its totient is φ = 333884544.

The previous prime is 683668421. The next prime is 683668457. The reversal of 683668438 is 834866386.

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

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, 3974731 + ... + 3974902.

It is an arithmetic number, because the mean of its divisors is an integer number (131168961).

Almost surely, 2^683668438 is an apocalyptic number.

683668438 is a deficient number, since it is larger than the sum of its proper divisors (365683250).

683668438 is a wasteful number, since it uses less digits than its factorization.

683668438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7949678.

The product of its digits is 3981312, while the sum is 52.

The square root of 683668438 is about 26147.0540979285. The cubic root of 683668438 is about 880.9444225431.

The spelling of 683668438 in words is "six hundred eighty-three million, six hundred sixty-eight thousand, four hundred thirty-eight".