12644726 has 8 divisors (see below), whose sum is σ = 19162920. Its totient is φ = 6257088.

The previous prime is 12644707. The next prime is 12644741. The reversal of 12644726 is 62744621.

12644726 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12644692 and 12644701.

It is a congruent 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, 32396 + ... + 32783.

It is an arithmetic number, because the mean of its divisors is an integer number (2395365).

Almost surely, 2^12644726 is an apocalyptic number.

12644726 is a deficient number, since it is larger than the sum of its proper divisors (6518194).

12644726 is an equidigital number, since it uses as much as digits as its factorization.

12644726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65278.

The product of its digits is 16128, while the sum is 32.

The square root of 12644726 is about 3555.9423504888. The cubic root of 12644726 is about 232.9716851149.

The spelling of 12644726 in words is "twelve million, six hundred forty-four thousand, seven hundred twenty-six".