13717691 has 8 divisors (see below), whose sum is σ = 15642144. Its totient is φ = 11917440.

The previous prime is 13717687. The next prime is 13717703. The reversal of 13717691 is 19671731.

13717691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13717691 - 2² = 13717687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13717621) 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, 30815 + ... + 31256.

It is an arithmetic number, because the mean of its divisors is an integer number (1955268).

Almost surely, 2^13717691 is an apocalyptic number.

13717691 is a deficient number, since it is larger than the sum of its proper divisors (1924453).

13717691 is a wasteful number, since it uses less digits than its factorization.

13717691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62101.

The product of its digits is 7938, while the sum is 35.

The square root of 13717691 is about 3703.7401366727. The cubic root of 13717691 is about 239.3832020722.

The spelling of 13717691 in words is "thirteen million, seven hundred seventeen thousand, six hundred ninety-one".