6704909 has 2 divisors, whose sum is σ = 6704910. Its totient is φ = 6704908.

The previous prime is 6704903. The next prime is 6704921. The reversal of 6704909 is 9094076.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5808100 + 896809 = 2410^2 + 947^2 .

It is a cyclic number.

It is not a de Polignac number, because 6704909 - 2⁸ = 6704653 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6704903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3352454 + 3352455.

It is an arithmetic number, because the mean of its divisors is an integer number (3352455).

Almost surely, 2^6704909 is an apocalyptic number.

It is an amenable number.

6704909 is a deficient number, since it is larger than the sum of its proper divisors (1).

6704909 is an equidigital number, since it uses as much as digits as its factorization.

6704909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 6704909 is about 2589.3839035570. The cubic root of 6704909 is about 188.5663939744.

The spelling of 6704909 in words is "six million, seven hundred four thousand, nine hundred nine".