12729849 has 16 divisors (see below), whose sum is σ = 18948864. Its totient is φ = 7534800.

The previous prime is 12729839. The next prime is 12729851. The reversal of 12729849 is 94892721.

It is not a de Polignac number, because 12729849 - 2⁵ = 12729817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12729849.

It is not an unprimeable number, because it can be changed into a prime (12729839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3067 + ... + 5904.

It is an arithmetic number, because the mean of its divisors is an integer number (1184304).

Almost surely, 2^12729849 is an apocalyptic number.

It is an amenable number.

12729849 is a deficient number, since it is larger than the sum of its proper divisors (6219015).

12729849 is a wasteful number, since it uses less digits than its factorization.

12729849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9028.

The product of its digits is 72576, while the sum is 42.

The square root of 12729849 is about 3567.8913940870. The cubic root of 12729849 is about 233.4932968866.

The spelling of 12729849 in words is "twelve million, seven hundred twenty-nine thousand, eight hundred forty-nine".