14065691 has 4 divisors (see below), whose sum is σ = 14143584. Its totient is φ = 13987800.

The previous prime is 14065669. The next prime is 14065697. The reversal of 14065691 is 19656041.

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 14065691 - 2¹⁸ = 13803547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14065697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38675 + ... + 39036.

It is an arithmetic number, because the mean of its divisors is an integer number (3535896).

Almost surely, 2^14065691 is an apocalyptic number.

14065691 is a deficient number, since it is larger than the sum of its proper divisors (77893).

14065691 is an equidigital number, since it uses as much as digits as its factorization.

14065691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77892.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 14065691 is about 3750.4254425332. The cubic root of 14065691 is about 241.3906018173.

The spelling of 14065691 in words is "fourteen million, sixty-five thousand, six hundred ninety-one".