2563804 has 24 divisors (see below), whose sum is σ = 4883760. Its totient is φ = 1172736.

The previous prime is 2563777. The next prime is 2563811. The reversal of 2563804 is 4083652.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2007 + ... + 3025.

It is an arithmetic number, because the mean of its divisors is an integer number (203490).

2^2563804 is an apocalyptic number.

It is an amenable number.

2563804 is a deficient number, since it is larger than the sum of its proper divisors (2319956).

2563804 is a wasteful number, since it uses less digits than its factorization.

2563804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077 (or 1075 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2563804 is about 1601.1883087257. The cubic root of 2563804 is about 136.8657999974.

The spelling of 2563804 in words is "two million, five hundred sixty-three thousand, eight hundred four".