6801809 has 8 divisors (see below), whose sum is σ = 7843200. Its totient is φ = 5777856.

The previous prime is 6801797. The next prime is 6801833. The reversal of 6801809 is 9081086.

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

It is not a de Polignac number, because 6801809 - 2¹⁶ = 6736273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6801889) 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, 3509 + ... + 5090.

It is an arithmetic number, because the mean of its divisors is an integer number (980400).

Almost surely, 2^6801809 is an apocalyptic number.

It is an amenable number.

6801809 is a deficient number, since it is larger than the sum of its proper divisors (1041391).

6801809 is a wasteful number, since it uses less digits than its factorization.

6801809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8719.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 6801809 is about 2608.0277989316. The cubic root of 6801809 is about 189.4704460284.

The spelling of 6801809 in words is "six million, eight hundred one thousand, eight hundred nine".