6684773 has 2 divisors, whose sum is σ = 6684774. Its totient is φ = 6684772.

The previous prime is 6684749. The next prime is 6684779. The reversal of 6684773 is 3774866.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3869089 + 2815684 = 1967^2 + 1678^2 .

It is a cyclic number.

It is not a de Polignac number, because 6684773 - 2¹⁰ = 6683749 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6684773.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6684779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3342386 + 3342387.

It is an arithmetic number, because the mean of its divisors is an integer number (3342387).

Almost surely, 2^6684773 is an apocalyptic number.

It is an amenable number.

6684773 is a deficient number, since it is larger than the sum of its proper divisors (1).

6684773 is an equidigital number, since it uses as much as digits as its factorization.

6684773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 41.

The square root of 6684773 is about 2585.4927963543. The cubic root of 6684773 is about 188.3774388744.

The spelling of 6684773 in words is "six million, six hundred eighty-four thousand, seven hundred seventy-three".