2806855 has 8 divisors (see below), whose sum is σ = 3384432. Its totient is φ = 2234688.

The previous prime is 2806849. The next prime is 2806861. The reversal of 2806855 is 5586082.

2806855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2806849) and next prime (2806861).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2806855 - 2³ = 2806847 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2806855.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102 + ... + 2371.

It is an arithmetic number, because the mean of its divisors is an integer number (423054).

2^2806855 is an apocalyptic number.

2806855 is a deficient number, since it is larger than the sum of its proper divisors (577577).

2806855 is a wasteful number, since it uses less digits than its factorization.

2806855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2705.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 2806855 is about 1675.3671239463. The cubic root of 2806855 is about 141.0609028855.

The spelling of 2806855 in words is "two million, eight hundred six thousand, eight hundred fifty-five".