2855963 has 6 divisors (see below), whose sum is σ = 3139332. Its totient is φ = 2596220.

The previous prime is 2855953. The next prime is 2855989. The reversal of 2855963 is 3695582.

2855963 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 2855963 - 2⁶ = 2855899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2855953) 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 5 ways as a sum of consecutive naturals, for example, 11681 + ... + 11922.

It is an arithmetic number, because the mean of its divisors is an integer number (523222).

2^2855963 is an apocalyptic number.

2855963 is a deficient number, since it is larger than the sum of its proper divisors (283369).

2855963 is a wasteful number, since it uses less digits than its factorization.

2855963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23625 (or 23614 counting only the distinct ones).

The product of its digits is 64800, while the sum is 38.

The square root of 2855963 is about 1689.9594669695. The cubic root of 2855963 is about 141.8788062011.

The spelling of 2855963 in words is "two million, eight hundred fifty-five thousand, nine hundred sixty-three".