13469729 has 16 divisors (see below), whose sum is σ = 17555328. Its totient is φ = 10029312.

The previous prime is 13469669. The next prime is 13469761. The reversal of 13469729 is 92796431.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13469729 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (13469629) 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, 2807 + ... + 5900.

It is an arithmetic number, because the mean of its divisors is an integer number (1097208).

Almost surely, 2^13469729 is an apocalyptic number.

It is an amenable number.

13469729 is a deficient number, since it is larger than the sum of its proper divisors (4085599).

13469729 is a wasteful number, since it uses less digits than its factorization.

13469729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8744.

The product of its digits is 81648, while the sum is 41.

The square root of 13469729 is about 3670.1129410415. The cubic root of 13469729 is about 237.9320534329.

The spelling of 13469729 in words is "thirteen million, four hundred sixty-nine thousand, seven hundred twenty-nine".