12644349 has 8 divisors (see below), whose sum is σ = 17145120. Its totient is φ = 8286576.

The previous prime is 12644341. The next prime is 12644353. The reversal of 12644349 is 94344621.

12644349 is digitally balanced in base 3, 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 not a de Polignac number, because 12644349 - 2³ = 12644341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12644341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35542 + ... + 35895.

It is an arithmetic number, because the mean of its divisors is an integer number (2143140).

Almost surely, 2^12644349 is an apocalyptic number.

It is an amenable number.

12644349 is a deficient number, since it is larger than the sum of its proper divisors (4500771).

12644349 is an equidigital number, since it uses as much as digits as its factorization.

12644349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71499.

The product of its digits is 20736, while the sum is 33.

The square root of 12644349 is about 3555.8893402354. The cubic root of 12644349 is about 232.9693697570.

The spelling of 12644349 in words is "twelve million, six hundred forty-four thousand, three hundred forty-nine".