12968729 has 8 divisors (see below), whose sum is σ = 13296960. Its totient is φ = 12643696.

The previous prime is 12968699. The next prime is 12968743. The reversal of 12968729 is 92786921.

It is a happy number.

12968729 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 12968729 - 2¹⁶ = 12903193 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 12968729.

It is not an unprimeable number, because it can be changed into a prime (12968749) 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, 8804 + ... + 10170.

It is an arithmetic number, because the mean of its divisors is an integer number (1662120).

Almost surely, 2^12968729 is an apocalyptic number.

It is an amenable number.

12968729 is a deficient number, since it is larger than the sum of its proper divisors (328231).

12968729 is a wasteful number, since it uses less digits than its factorization.

12968729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599.

The product of its digits is 108864, while the sum is 44.

The square root of 12968729 is about 3601.2121570382. The cubic root of 12968729 is about 234.9447825601.

The spelling of 12968729 in words is "twelve million, nine hundred sixty-eight thousand, seven hundred twenty-nine".