14688217 has 4 divisors (see below), whose sum is σ = 14701540. Its totient is φ = 14674896.

The previous prime is 14688169. The next prime is 14688253. The reversal of 14688217 is 71288641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71288641 = 29 ⋅2458229.

It can be written as a sum of positive squares in 2 ways, for example, as 8433216 + 6255001 = 2904^2 + 2501^2 .

It is a cyclic number.

It is not a de Polignac number, because 14688217 - 2¹⁵ = 14655449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14688277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4842 + ... + 7267.

It is an arithmetic number, because the mean of its divisors is an integer number (3675385).

Almost surely, 2^14688217 is an apocalyptic number.

It is an amenable number.

14688217 is a deficient number, since it is larger than the sum of its proper divisors (13323).

14688217 is a wasteful number, since it uses less digits than its factorization.

14688217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13322.

The product of its digits is 21504, while the sum is 37.

The square root of 14688217 is about 3832.5209718930. The cubic root of 14688217 is about 244.9005121537.

The spelling of 14688217 in words is "fourteen million, six hundred eighty-eight thousand, two hundred seventeen".