6855805 has 16 divisors (see below), whose sum is σ = 9266688. Its totient is φ = 4824000.

The previous prime is 6855799. The next prime is 6855809. The reversal of 6855805 is 5085586.

It is a happy number.

6855805 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6855805 - 2⁷ = 6855677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6855809) 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 15 ways as a sum of consecutive naturals, for example, 306 + ... + 3715.

It is an arithmetic number, because the mean of its divisors is an integer number (579168).

Almost surely, 2^6855805 is an apocalyptic number.

It is an amenable number.

6855805 is a deficient number, since it is larger than the sum of its proper divisors (2410883).

6855805 is a wasteful number, since it uses less digits than its factorization.

6855805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4068.

The product of its (nonzero) digits is 48000, while the sum is 37.

The square root of 6855805 is about 2618.3592190530. The cubic root of 6855805 is about 189.9704940331.

The spelling of 6855805 in words is "six million, eight hundred fifty-five thousand, eight hundred five".