12304729 has 8 divisors (see below), whose sum is σ = 12858120. Its totient is φ = 11760000.

The previous prime is 12304717. The next prime is 12304739. The reversal of 12304729 is 92740321.

12304729 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2096704 + 10208025 = 1448^2 + 3195^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12304729 - 2⁷ = 12304601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12304697 and 12304706.

It is not an unprimeable number, because it can be changed into a prime (12304739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 829 + ... + 5029.

It is an arithmetic number, because the mean of its divisors is an integer number (1607265).

Almost surely, 2^12304729 is an apocalyptic number.

It is an amenable number.

12304729 is a deficient number, since it is larger than the sum of its proper divisors (553391).

12304729 is a wasteful number, since it uses less digits than its factorization.

12304729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4331.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 12304729 is about 3507.8097154777. The cubic root of 12304729 is about 230.8646033510.

The spelling of 12304729 in words is "twelve million, three hundred four thousand, seven hundred twenty-nine".