14217217 has 8 divisors (see below), whose sum is σ = 16275776. Its totient is φ = 12165552.

The previous prime is 14217191. The next prime is 14217223. The reversal of 14217217 is 71271241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-14217217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14217191 and 14217200.

It is not an unprimeable number, because it can be changed into a prime (14217227) 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, 3958 + ... + 6640.

It is an arithmetic number, because the mean of its divisors is an integer number (2034472).

It is a Proth number, since it is equal to 3471 ⋅ 2¹² + 1 and 3471 < 2¹².

Almost surely, 2^14217217 is an apocalyptic number.

It is an amenable number.

14217217 is a deficient number, since it is larger than the sum of its proper divisors (2058559).

14217217 is an equidigital number, since it uses as much as digits as its factorization.

14217217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3447.

The product of its digits is 784, while the sum is 25.

The square root of 14217217 is about 3770.5725029497. The cubic root of 14217217 is about 242.2543202124.

Adding to 14217217 its reverse (71271241), we get a palindrome (85488458).

The spelling of 14217217 in words is "fourteen million, two hundred seventeen thousand, two hundred seventeen".