2086855 has 4 divisors (see below), whose sum is σ = 2504232. Its totient is φ = 1669480.

The previous prime is 2086853. The next prime is 2086879. The reversal of 2086855 is 5586802.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2086855 - 2¹ = 2086853 is a prime.

It is a Duffinian number.

2086855 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2086855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2086853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208681 + ... + 208690.

It is an arithmetic number, because the mean of its divisors is an integer number (626058).

2^2086855 is an apocalyptic number.

2086855 is a deficient number, since it is larger than the sum of its proper divisors (417377).

2086855 is an equidigital number, since it uses as much as digits as its factorization.

2086855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417376.

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

The square root of 2086855 is about 1444.5950989810. The cubic root of 2086855 is about 127.7901631907.

The spelling of 2086855 in words is "two million, eighty-six thousand, eight hundred fifty-five".