6666683 has 2 divisors, whose sum is σ = 6666684. Its totient is φ = 6666682.

The previous prime is 6666679. The next prime is 6666689. The reversal of 6666683 is 3866666.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6666683 - 2² = 6666679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6666683.

It is not a weakly prime, because it can be changed into another prime (6666689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3333341 + 3333342.

It is an arithmetic number, because the mean of its divisors is an integer number (3333342).

Almost surely, 2^6666683 is an apocalyptic number.

6666683 is a deficient number, since it is larger than the sum of its proper divisors (1).

6666683 is an equidigital number, since it uses as much as digits as its factorization.

6666683 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 41.

The square root of 6666683 is about 2581.9920604061. The cubic root of 6666683 is about 188.2073594786.

Adding to 6666683 its sum of digits (41), we get a square (6666724 = 2582²).

The spelling of 6666683 in words is "six million, six hundred sixty-six thousand, six hundred eighty-three".