2563916 has 12 divisors (see below), whose sum is σ = 4510800. Its totient is φ = 1275120.

The previous prime is 2563909. The next prime is 2563921. The reversal of 2563916 is 6193652.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 815 + ... + 2406.

It is an arithmetic number, because the mean of its divisors is an integer number (375900).

2^2563916 is an apocalyptic number.

It is an amenable number.

2563916 is a deficient number, since it is larger than the sum of its proper divisors (1946884).

2563916 is a wasteful number, since it uses less digits than its factorization.

2563916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3424 (or 3422 counting only the distinct ones).

The product of its digits is 9720, while the sum is 32.

The square root of 2563916 is about 1601.2232823688. The cubic root of 2563916 is about 136.8677929665.

The spelling of 2563916 in words is "two million, five hundred sixty-three thousand, nine hundred sixteen".