13006729 has 4 divisors (see below), whose sum is σ = 13018320. Its totient is φ = 12995140.

The previous prime is 13006723. The next prime is 13006739. The reversal of 13006729 is 92760031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13006729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13006697 and 13006706.

It is not an unprimeable number, because it can be changed into a prime (13006723) 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, 3907 + ... + 6424.

It is an arithmetic number, because the mean of its divisors is an integer number (3254580).

Almost surely, 2^13006729 is an apocalyptic number.

It is an amenable number.

13006729 is a deficient number, since it is larger than the sum of its proper divisors (11591).

13006729 is a wasteful number, since it uses less digits than its factorization.

13006729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11590.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 13006729 is about 3606.4842991479. The cubic root of 13006729 is about 235.1740313412.

The spelling of 13006729 in words is "thirteen million, six thousand, seven hundred twenty-nine".