6855775 has 12 divisors (see below), whose sum is σ = 8630152. Its totient is φ = 5401440.

The previous prime is 6855769. The next prime is 6855787. The reversal of 6855775 is 5775586.

6855775 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 6855775 - 2⁷ = 6855647 is a prime.

It is a Duffinian number.

6855775 is a lucky number.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 372 + ... + 3721.

Almost surely, 2^6855775 is an apocalyptic number.

6855775 is a deficient number, since it is larger than the sum of its proper divisors (1774377).

6855775 is a wasteful number, since it uses less digits than its factorization.

6855775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4170 (or 4165 counting only the distinct ones).

The product of its digits is 294000, while the sum is 43.

The square root of 6855775 is about 2618.3534902683. The cubic root of 6855775 is about 189.9702169383.

The spelling of 6855775 in words is "six million, eight hundred fifty-five thousand, seven hundred seventy-five".