12644704 has 12 divisors (see below), whose sum is σ = 24894324. Its totient is φ = 6322336.

The previous prime is 12644701. The next prime is 12644707. The reversal of 12644704 is 40744621.

It is an interprime number because it is at equal distance from previous prime (12644701) and next prime (12644707).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12644701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197542 + ... + 197605.

It is an arithmetic number, because the mean of its divisors is an integer number (2074527).

Almost surely, 2^12644704 is an apocalyptic number.

It is an amenable number.

12644704 is a deficient number, since it is larger than the sum of its proper divisors (12249620).

12644704 is an equidigital number, since it uses as much as digits as its factorization.

12644704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395157 (or 395149 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 12644704 is about 3555.9392570740. The cubic root of 12644704 is about 232.9715500025.

The spelling of 12644704 in words is "twelve million, six hundred forty-four thousand, seven hundred four".