683643836 has 12 divisors (see below), whose sum is σ = 1215989880. Its totient is φ = 336218160.

The previous prime is 683643833. The next prime is 683643853. The reversal of 683643836 is 638346386.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683643833) 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, 1400666 + ... + 1401153.

It is an arithmetic number, because the mean of its divisors is an integer number (101332490).

Almost surely, 2^683643836 is an apocalyptic number.

It is an amenable number.

683643836 is a deficient number, since it is larger than the sum of its proper divisors (532346044).

683643836 is a wasteful number, since it uses less digits than its factorization.

683643836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2801884 (or 2801882 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 47.

The square root of 683643836 is about 26146.5836391679. The cubic root of 683643836 is about 880.9338554058.

The spelling of 683643836 in words is "six hundred eighty-three million, six hundred forty-three thousand, eight hundred thirty-six".