13792729 has 4 divisors (see below), whose sum is σ = 14604084. Its totient is φ = 12981376.

The previous prime is 13792711. The next prime is 13792733. The reversal of 13792729 is 92729731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12531600 + 1261129 = 3540^2 + 1123^2 .

It is a cyclic number.

It is not a de Polignac number, because 13792729 - 2⁹ = 13792217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13792691 and 13792700.

It is not an unprimeable number, because it can be changed into a prime (13792759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405652 + ... + 405685.

It is an arithmetic number, because the mean of its divisors is an integer number (3651021).

Almost surely, 2^13792729 is an apocalyptic number.

It is an amenable number.

13792729 is a deficient number, since it is larger than the sum of its proper divisors (811355).

13792729 is an equidigital number, since it uses as much as digits as its factorization.

13792729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811354.

The product of its digits is 47628, while the sum is 40.

The square root of 13792729 is about 3713.8563515570. The cubic root of 13792729 is about 239.8188969395.

The spelling of 13792729 in words is "thirteen million, seven hundred ninety-two thousand, seven hundred twenty-nine".