2855879 has 4 divisors (see below), whose sum is σ = 3075576. Its totient is φ = 2636184.

The previous prime is 2855873. The next prime is 2855893. The reversal of 2855879 is 9785582.

2855879 is nontrivially palindromic in base 12.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9785582 = 2 ⋅4892791.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2855879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2855873) 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, 109829 + ... + 109854.

It is an arithmetic number, because the mean of its divisors is an integer number (768894).

2^2855879 is an apocalyptic number.

2855879 is a deficient number, since it is larger than the sum of its proper divisors (219697).

2855879 is a wasteful number, since it uses less digits than its factorization.

2855879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219696.

The product of its digits is 201600, while the sum is 44.

The square root of 2855879 is about 1689.9346141197. The cubic root of 2855879 is about 141.8774152008.

The spelling of 2855879 in words is "two million, eight hundred fifty-five thousand, eight hundred seventy-nine".