2805878 has 16 divisors (see below), whose sum is σ = 4337520. Its totient is φ = 1360800.

The previous prime is 2805851. The next prime is 2805899. The reversal of 2805878 is 8785082.

2805878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 13193 + ... + 13403.

It is an arithmetic number, because the mean of its divisors is an integer number (271095).

2^2805878 is an apocalyptic number.

2805878 is a deficient number, since it is larger than the sum of its proper divisors (1531642).

2805878 is a wasteful number, since it uses less digits than its factorization.

2805878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383.

The product of its (nonzero) digits is 35840, while the sum is 38.

The square root of 2805878 is about 1675.0755206856. The cubic root of 2805878 is about 141.0445343288.

The spelling of 2805878 in words is "two million, eight hundred five thousand, eight hundred seventy-eight".