2663564 has 12 divisors (see below), whose sum is σ = 4720800. Its totient is φ = 1314768.

The previous prime is 2663539. The next prime is 2663567. The reversal of 2663564 is 4653662.

It is a self number, because there is not a number n which added to its sum of digits gives 2663564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2663567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3899 + ... + 4530.

It is an arithmetic number, because the mean of its divisors is an integer number (393400).

2^2663564 is an apocalyptic number.

It is an amenable number.

2663564 is a deficient number, since it is larger than the sum of its proper divisors (2057236).

2663564 is a wasteful number, since it uses less digits than its factorization.

2663564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8512 (or 8510 counting only the distinct ones).

The product of its digits is 25920, while the sum is 32.

The square root of 2663564 is about 1632.0428915932. The cubic root of 2663564 is about 138.6184522754.

The spelling of 2663564 in words is "two million, six hundred sixty-three thousand, five hundred sixty-four".