13716691 has 4 divisors (see below), whose sum is σ = 13890400. Its totient is φ = 13542984.

The previous prime is 13716679. The next prime is 13716701. The reversal of 13716691 is 19661731.

13716691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 13716691 - 2¹¹ = 13714643 is a prime.

It is a super-2 number, since 2×13716691² = 376295223978962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13716611) 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, 86736 + ... + 86893.

It is an arithmetic number, because the mean of its divisors is an integer number (3472600).

Almost surely, 2^13716691 is an apocalyptic number.

13716691 is a deficient number, since it is larger than the sum of its proper divisors (173709).

13716691 is an equidigital number, since it uses as much as digits as its factorization.

13716691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173708.

The product of its digits is 6804, while the sum is 34.

The square root of 13716691 is about 3703.6051355402. The cubic root of 13716691 is about 239.3773850335.

The spelling of 13716691 in words is "thirteen million, seven hundred sixteen thousand, six hundred ninety-one".