12663736 has 8 divisors (see below), whose sum is σ = 23744520. Its totient is φ = 6331864.

The previous prime is 12663733. The next prime is 12663743. The reversal of 12663736 is 63736621.

12663736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12663733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 791476 + ... + 791491.

It is an arithmetic number, because the mean of its divisors is an integer number (2968065).

Almost surely, 2^12663736 is an apocalyptic number.

It is an amenable number.

12663736 is a deficient number, since it is larger than the sum of its proper divisors (11080784).

12663736 is a wasteful number, since it uses less digits than its factorization.

12663736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582973 (or 1582969 counting only the distinct ones).

The product of its digits is 27216, while the sum is 34.

The square root of 12663736 is about 3558.6143370700. The cubic root of 12663736 is about 233.0883760362.

The spelling of 12663736 in words is "twelve million, six hundred sixty-three thousand, seven hundred thirty-six".