2855091 has 4 divisors (see below), whose sum is σ = 3806792. Its totient is φ = 1903392.

The previous prime is 2855089. The next prime is 2855093. The reversal of 2855091 is 1905582.

2855091 is digitally balanced in base 2, 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.

It is an interprime number because it is at equal distance from previous prime (2855089) and next prime (2855093).

It is not a de Polignac number, because 2855091 - 2¹ = 2855089 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2855093) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 475846 + ... + 475851.

It is an arithmetic number, because the mean of its divisors is an integer number (951698).

2^2855091 is an apocalyptic number.

2855091 is a deficient number, since it is larger than the sum of its proper divisors (951701).

2855091 is an equidigital number, since it uses as much as digits as its factorization.

2855091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951700.

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 2855091 is about 1689.7014529200. The cubic root of 2855091 is about 141.8643649645.

The spelling of 2855091 in words is "two million, eight hundred fifty-five thousand, ninety-one".