6802009 has 4 divisors (see below), whose sum is σ = 6810804. Its totient is φ = 6793216.

The previous prime is 6802001. The next prime is 6802027. The reversal of 6802009 is 9002086.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6579225 + 222784 = 2565^2 + 472^2 .

It is a cyclic number.

It is not a de Polignac number, because 6802009 - 2³ = 6802001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6802001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3112 + ... + 4825.

It is an arithmetic number, because the mean of its divisors is an integer number (1702701).

Almost surely, 2^6802009 is an apocalyptic number.

It is an amenable number.

6802009 is a deficient number, since it is larger than the sum of its proper divisors (8795).

6802009 is an equidigital number, since it uses as much as digits as its factorization.

6802009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8794.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 6802009 is about 2608.0661417993. The cubic root of 6802009 is about 189.4723030696.

The spelling of 6802009 in words is "six million, eight hundred two thousand, nine".