6855895 has 4 divisors (see below), whose sum is σ = 8227080. Its totient is φ = 5484712.

The previous prime is 6855889. The next prime is 6855899. The reversal of 6855895 is 5985586.

It is a happy number.

6855895 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5985586 = 2 ⋅2992793.

It is a cyclic number.

It is not a de Polignac number, because 6855895 - 2³ = 6855887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6855899) 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 3 ways as a sum of consecutive naturals, for example, 685585 + ... + 685594.

It is an arithmetic number, because the mean of its divisors is an integer number (2056770).

Almost surely, 2^6855895 is an apocalyptic number.

6855895 is a deficient number, since it is larger than the sum of its proper divisors (1371185).

6855895 is a wasteful number, since it uses less digits than its factorization.

6855895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371184.

The product of its digits is 432000, while the sum is 46.

The square root of 6855895 is about 2618.3764053321. The cubic root of 6855895 is about 189.9713253125.

It can be divided in two parts, 6855 and 895, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 6855895 in words is "six million, eight hundred fifty-five thousand, eight hundred ninety-five".