6809449 has 8 divisors (see below), whose sum is σ = 7156800. Its totient is φ = 6466416.

The previous prime is 6809423. The next prime is 6809459. The reversal of 6809449 is 9449086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6809449 is a prime.

It is a Duffinian number.

6809449 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6809459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2434 + ... + 4420.

It is an arithmetic number, because the mean of its divisors is an integer number (894600).

Almost surely, 2^6809449 is an apocalyptic number.

It is an amenable number.

6809449 is a deficient number, since it is larger than the sum of its proper divisors (347351).

6809449 is a wasteful number, since it uses less digits than its factorization.

6809449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 6809449 is about 2609.4920961750. The cubic root of 6809449 is about 189.5413591520.

The spelling of 6809449 in words is "six million, eight hundred nine thousand, four hundred forty-nine".