13729687 has 8 divisors (see below), whose sum is σ = 14083776. Its totient is φ = 13378272.

The previous prime is 13729663. The next prime is 13729699. The reversal of 13729687 is 78692731.

It is a happy number.

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 13729687 - 2¹¹ = 13727639 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 (13729487) 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, 13273 + ... + 14269.

It is an arithmetic number, because the mean of its divisors is an integer number (1760472).

Almost surely, 2^13729687 is an apocalyptic number.

13729687 is a deficient number, since it is larger than the sum of its proper divisors (354089).

13729687 is an equidigital number, since it uses as much as digits as its factorization.

13729687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337.

The product of its digits is 127008, while the sum is 43.

The square root of 13729687 is about 3705.3592268497. The cubic root of 13729687 is about 239.4529612424.

The spelling of 13729687 in words is "thirteen million, seven hundred twenty-nine thousand, six hundred eighty-seven".