683869646 has 8 divisors (see below), whose sum is σ = 1047630240. Its totient is φ = 334659568.

The previous prime is 683869643. The next prime is 683869661. The reversal of 683869646 is 646968386.

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

It is a junction number, because it is equal to n+sod(n) for n = 683869591 and 683869600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683869643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3637511 + ... + 3637698.

It is an arithmetic number, because the mean of its divisors is an integer number (130953780).

Almost surely, 2^683869646 is an apocalyptic number.

683869646 is a deficient number, since it is larger than the sum of its proper divisors (363760594).

683869646 is a wasteful number, since it uses less digits than its factorization.

683869646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7275258.

The product of its digits is 8957952, while the sum is 56.

The square root of 683869646 is about 26150.9014376178. The cubic root of 683869646 is about 881.0308365948.

The spelling of 683869646 in words is "six hundred eighty-three million, eight hundred sixty-nine thousand, six hundred forty-six".