6853809 has 8 divisors (see below), whose sum is σ = 9210880. Its totient is φ = 4532976.

The previous prime is 6853807. The next prime is 6853817. The reversal of 6853809 is 9083586.

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

It is not a de Polignac number, because 6853809 - 2¹ = 6853807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6853807) 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, 8614 + ... + 9375.

It is an arithmetic number, because the mean of its divisors is an integer number (1151360).

Almost surely, 2^6853809 is an apocalyptic number.

It is an amenable number.

6853809 is a deficient number, since it is larger than the sum of its proper divisors (2357071).

6853809 is a wasteful number, since it uses less digits than its factorization.

6853809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18119.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 6853809 is about 2617.9780365771. The cubic root of 6853809 is about 189.9520562318.

The spelling of 6853809 in words is "six million, eight hundred fifty-three thousand, eight hundred nine".