12984564 has 12 divisors (see below), whose sum is σ = 30297344. Its totient is φ = 4328184.

The previous prime is 12984563. The next prime is 12984571. The reversal of 12984564 is 46548921.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12984563) 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, 541012 + ... + 541035.

Almost surely, 2^12984564 is an apocalyptic number.

It is an amenable number.

12984564 is an abundant number, since it is smaller than the sum of its proper divisors (17312780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12984564 is a wasteful number, since it uses less digits than its factorization.

12984564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082054 (or 1082052 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 12984564 is about 3603.4100516039. The cubic root of 12984564 is about 235.0403672921.

The spelling of 12984564 in words is "twelve million, nine hundred eighty-four thousand, five hundred sixty-four".