12738329 has 4 divisors (see below), whose sum is σ = 12748560. Its totient is φ = 12728100.

The previous prime is 12738311. The next prime is 12738347. The reversal of 12738329 is 92383721.

12738329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (12738311) and next prime (12738347).

It is a cyclic number.

It is not a de Polignac number, because 12738329 - 2¹² = 12734233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12738629) 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, 2939 + ... + 5840.

It is an arithmetic number, because the mean of its divisors is an integer number (3187140).

Almost surely, 2^12738329 is an apocalyptic number.

It is an amenable number.

12738329 is a deficient number, since it is larger than the sum of its proper divisors (10231).

12738329 is an equidigital number, since it uses as much as digits as its factorization.

12738329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10230.

The product of its digits is 18144, while the sum is 35.

The square root of 12738329 is about 3569.0795732233. The cubic root of 12738329 is about 233.5451326325.

The spelling of 12738329 in words is "twelve million, seven hundred thirty-eight thousand, three hundred twenty-nine".