6683993 has 2 divisors, whose sum is σ = 6683994. Its totient is φ = 6683992.

The previous prime is 6683981. The next prime is 6684001. The reversal of 6683993 is 3993866.

6683993 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5345344 + 1338649 = 2312^2 + 1157^2 .

It is a cyclic number.

It is not a de Polignac number, because 6683993 - 2⁴ = 6683977 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6683903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3341996 + 3341997.

It is an arithmetic number, because the mean of its divisors is an integer number (3341997).

Almost surely, 2^6683993 is an apocalyptic number.

It is an amenable number.

6683993 is a deficient number, since it is larger than the sum of its proper divisors (1).

6683993 is an equidigital number, since it uses as much as digits as its factorization.

6683993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 44.

The square root of 6683993 is about 2585.3419503037. The cubic root of 6683993 is about 188.3701117686.

The spelling of 6683993 in words is "six million, six hundred eighty-three thousand, nine hundred ninety-three".