13729717 has 8 divisors (see below), whose sum is σ = 13920192. Its totient is φ = 13540800.

The previous prime is 13729699. The next prime is 13729739. The reversal of 13729717 is 71792731.

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 13729717 - 2¹¹ = 13727669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13729117) 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, 40573 + ... + 40909.

It is an arithmetic number, because the mean of its divisors is an integer number (1740024).

Almost surely, 2^13729717 is an apocalyptic number.

It is an amenable number.

13729717 is a deficient number, since it is larger than the sum of its proper divisors (190475).

13729717 is a wasteful number, since it uses less digits than its factorization.

13729717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779.

The product of its digits is 18522, while the sum is 37.

The square root of 13729717 is about 3705.3632750380. The cubic root of 13729717 is about 239.4531356476.

The spelling of 13729717 in words is "thirteen million, seven hundred twenty-nine thousand, seven hundred seventeen".