6806385 has 12 divisors (see below), whose sum is σ = 11797812. Its totient is φ = 3630048.

The previous prime is 6806383. The next prime is 6806407. The reversal of 6806385 is 5836086.

It can be written as a sum of positive squares in 2 ways, for example, as 4297329 + 2509056 = 2073^2 + 1584^2 .

It is not a de Polignac number, because 6806385 - 2¹ = 6806383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6806381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75582 + ... + 75671.

It is an arithmetic number, because the mean of its divisors is an integer number (983151).

Almost surely, 2^6806385 is an apocalyptic number.

It is an amenable number.

6806385 is a deficient number, since it is larger than the sum of its proper divisors (4991427).

6806385 is a wasteful number, since it uses less digits than its factorization.

6806385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151264 (or 151261 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 6806385 is about 2608.9049426915. The cubic root of 6806385 is about 189.5129260217.

Subtracting from 6806385 its reverse (5836086), we obtain a cube (970299 = 99³).

The spelling of 6806385 in words is "six million, eight hundred six thousand, three hundred eighty-five".