6684863 has 4 divisors (see below), whose sum is σ = 6779088. Its totient is φ = 6590640.

The previous prime is 6684833. The next prime is 6684869. The reversal of 6684863 is 3684866.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6684863 - 2⁸ = 6684607 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6684863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6684869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47006 + ... + 47147.

It is an arithmetic number, because the mean of its divisors is an integer number (1694772).

Almost surely, 2^6684863 is an apocalyptic number.

6684863 is a deficient number, since it is larger than the sum of its proper divisors (94225).

6684863 is an equidigital number, since it uses as much as digits as its factorization.

6684863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94224.

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

The square root of 6684863 is about 2585.5102011015. The cubic root of 6684863 is about 188.3782842730.

The spelling of 6684863 in words is "six million, six hundred eighty-four thousand, eight hundred sixty-three".