12806329 has 4 divisors (see below), whose sum is σ = 13152484. Its totient is φ = 12460176.

The previous prime is 12806327. The next prime is 12806351. The reversal of 12806329 is 92360821.

12806329 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.

It can be written as a sum of positive squares in 2 ways, for example, as 10989225 + 1817104 = 3315^2 + 1348^2 .

It is a cyclic number.

It is not a de Polignac number, because 12806329 - 2¹ = 12806327 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12806329.

It is not an unprimeable number, because it can be changed into a prime (12806327) 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, 173022 + ... + 173095.

It is an arithmetic number, because the mean of its divisors is an integer number (3288121).

Almost surely, 2^12806329 is an apocalyptic number.

It is an amenable number.

12806329 is a deficient number, since it is larger than the sum of its proper divisors (346155).

12806329 is an equidigital number, since it uses as much as digits as its factorization.

12806329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346154.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 12806329 is about 3578.5931593295. The cubic root of 12806329 is about 233.9599670965.

The spelling of 12806329 in words is "twelve million, eight hundred six thousand, three hundred twenty-nine".