2856105 has 24 divisors (see below), whose sum is σ = 5658432. Its totient is φ = 1305504.

The previous prime is 2856097. The next prime is 2856107. The reversal of 2856105 is 5016582.

2856105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2856105 - 2³ = 2856097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2856107) 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 23 ways as a sum of consecutive naturals, for example, 4219 + ... + 4848.

It is an arithmetic number, because the mean of its divisors is an integer number (235768).

2^2856105 is an apocalyptic number.

It is an amenable number.

2856105 is a deficient number, since it is larger than the sum of its proper divisors (2802327).

2856105 is a wasteful number, since it uses less digits than its factorization.

2856105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9085 (or 9082 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 2856105 is about 1690.0014792893. The cubic root of 2856105 is about 141.8811575921.

The spelling of 2856105 in words is "two million, eight hundred fifty-six thousand, one hundred five".