6668683 has 4 divisors (see below), whose sum is σ = 7621360. Its totient is φ = 5716008.

The previous prime is 6668659. The next prime is 6668687. The reversal of 6668683 is 3868666.

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 6668683 - 2⁹ = 6668171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6668687) 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, 476328 + ... + 476341.

It is an arithmetic number, because the mean of its divisors is an integer number (1905340).

Almost surely, 2^6668683 is an apocalyptic number.

6668683 is a deficient number, since it is larger than the sum of its proper divisors (952677).

6668683 is an equidigital number, since it uses as much as digits as its factorization.

6668683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952676.

The product of its digits is 248832, while the sum is 43.

The square root of 6668683 is about 2582.3793292233. The cubic root of 6668683 is about 188.2261782867.

The spelling of 6668683 in words is "six million, six hundred sixty-eight thousand, six hundred eighty-three".