12748329 has 24 divisors (see below), whose sum is σ = 20427264. Its totient is φ = 7596000.

The previous prime is 12748289. The next prime is 12748343. The reversal of 12748329 is 92384721.

It is not a de Polignac number, because 12748329 - 2¹² = 12744233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12748293 and 12748302.

It is not an unprimeable number, because it can be changed into a prime (12748369) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4984 + ... + 7094.

It is an arithmetic number, because the mean of its divisors is an integer number (851136).

Almost surely, 2^12748329 is an apocalyptic number.

It is an amenable number.

12748329 is a deficient number, since it is larger than the sum of its proper divisors (7678935).

12748329 is a wasteful number, since it uses less digits than its factorization.

12748329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189 (or 2186 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 12748329 is about 3570.4802198024. The cubic root of 12748329 is about 233.6062301401.

The spelling of 12748329 in words is "twelve million, seven hundred forty-eight thousand, three hundred twenty-nine".