2863563 has 16 divisors (see below), whose sum is σ = 4042752. Its totient is φ = 1800000.

The previous prime is 2863559. The next prime is 2863573. The reversal of 2863563 is 3653682.

It is not a de Polignac number, because 2863563 - 2² = 2863559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2863573) 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 15 ways as a sum of consecutive naturals, for example, 3438 + ... + 4188.

It is an arithmetic number, because the mean of its divisors is an integer number (252672).

2^2863563 is an apocalyptic number.

2863563 is a deficient number, since it is larger than the sum of its proper divisors (1179189).

2863563 is a wasteful number, since it uses less digits than its factorization.

2863563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826.

The product of its digits is 25920, while the sum is 33.

The square root of 2863563 is about 1692.2065476767. The cubic root of 2863563 is about 142.0045459101.

The spelling of 2863563 in words is "two million, eight hundred sixty-three thousand, five hundred sixty-three".