6827855 has 4 divisors (see below), whose sum is σ = 8193432. Its totient is φ = 5462280.

The previous prime is 6827839. The next prime is 6827867. The reversal of 6827855 is 5587286.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5587286 = 2 ⋅2793643.

It is not a de Polignac number, because 6827855 - 2⁴ = 6827839 is a prime.

It is a d-powerful number, because it can be written as 6² + 8⁴ + 2²⁰ + 7⁸ + 8⁴ + 5⁵ + 5⁵ .

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 682781 + ... + 682790.

It is an arithmetic number, because the mean of its divisors is an integer number (2048358).

Almost surely, 2^6827855 is an apocalyptic number.

6827855 is a deficient number, since it is larger than the sum of its proper divisors (1365577).

6827855 is a wasteful number, since it uses less digits than its factorization.

6827855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365576.

The product of its digits is 134400, while the sum is 41.

The square root of 6827855 is about 2613.0164561288. The cubic root of 6827855 is about 189.7119828271.

The spelling of 6827855 in words is "six million, eight hundred twenty-seven thousand, eight hundred fifty-five".