12729814 has 8 divisors (see below), whose sum is σ = 19110528. Its totient is φ = 6359640.

The previous prime is 12729797. The next prime is 12729817. The reversal of 12729814 is 41892721.

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

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 12729814.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12729817) 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 3 ways as a sum of consecutive naturals, for example, 2059 + ... + 5449.

It is an arithmetic number, because the mean of its divisors is an integer number (2388816).

Almost surely, 2^12729814 is an apocalyptic number.

12729814 is a deficient number, since it is larger than the sum of its proper divisors (6380714).

12729814 is a wasteful number, since it uses less digits than its factorization.

12729814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5270.

The product of its digits is 8064, while the sum is 34.

The square root of 12729814 is about 3567.8864892258. The cubic root of 12729814 is about 233.4930828942.

The spelling of 12729814 in words is "twelve million, seven hundred twenty-nine thousand, eight hundred fourteen".