683206656 has 144 divisors (see below), whose sum is σ = 2004256800. Its totient is φ = 206807040.

The previous prime is 683206627. The next prime is 683206681. The reversal of 683206656 is 656602386.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 742965 + ... + 743883.

It is an arithmetic number, because the mean of its divisors is an integer number (13918450).

Almost surely, 2^683206656 is an apocalyptic number.

683206656 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 683206656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1002128400).

683206656 is an abundant number, since it is smaller than the sum of its proper divisors (1321050144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

683206656 is a wasteful number, since it uses less digits than its factorization.

683206656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966 (or 935 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 683206656 is about 26138.2221277577. Note that the first 3 decimals coincide. The cubic root of 683206656 is about 880.7460340257.

The spelling of 683206656 in words is "six hundred eighty-three million, two hundred six thousand, six hundred fifty-six".