12729461 has 8 divisors (see below), whose sum is σ = 13016640. Its totient is φ = 12445632.

The previous prime is 12729439. The next prime is 12729491. The reversal of 12729461 is 16492721.

It is a happy number.

12729461 is digitally balanced in base 2, 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 a cyclic number.

It is not a de Polignac number, because 12729461 - 2¹⁸ = 12467317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12729491) 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, 7805 + ... + 9293.

It is an arithmetic number, because the mean of its divisors is an integer number (1627080).

Almost surely, 2^12729461 is an apocalyptic number.

It is an amenable number.

12729461 is a deficient number, since it is larger than the sum of its proper divisors (287179).

12729461 is a wasteful number, since it uses less digits than its factorization.

12729461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675.

The product of its digits is 6048, while the sum is 32.

The square root of 12729461 is about 3567.8370198203. The cubic root of 12729461 is about 233.4909246060.

The spelling of 12729461 in words is "twelve million, seven hundred twenty-nine thousand, four hundred sixty-one".