6704809 has 4 divisors (see below), whose sum is σ = 6789760. Its totient is φ = 6619860.

The previous prime is 6704801. The next prime is 6704813. The reversal of 6704809 is 9084076.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6704809 - 2³ = 6704801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6704801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42357 + ... + 42514.

It is an arithmetic number, because the mean of its divisors is an integer number (1697440).

Almost surely, 2^6704809 is an apocalyptic number.

It is an amenable number.

6704809 is a deficient number, since it is larger than the sum of its proper divisors (84951).

6704809 is an equidigital number, since it uses as much as digits as its factorization.

6704809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84950.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 6704809 is about 2589.3645938724. The cubic root of 6704809 is about 188.5654565154.

The spelling of 6704809 in words is "six million, seven hundred four thousand, eight hundred nine".