11716217 has 4 divisors (see below), whose sum is σ = 12332880. Its totient is φ = 11099556.

The previous prime is 11716189. The next prime is 11716231. The reversal of 11716217 is 71261711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11716217 - 2⁶ = 11716153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11716267) 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, 308303 + ... + 308340.

It is an arithmetic number, because the mean of its divisors is an integer number (3083220).

Almost surely, 2^11716217 is an apocalyptic number.

It is an amenable number.

11716217 is a deficient number, since it is larger than the sum of its proper divisors (616663).

11716217 is an equidigital number, since it uses as much as digits as its factorization.

11716217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616662.

The product of its digits is 588, while the sum is 26.

The square root of 11716217 is about 3422.8959960828. The cubic root of 11716217 is about 227.1237075329.

Adding to 11716217 its reverse (71261711), we get a palindrome (82977928).

The spelling of 11716217 in words is "eleven million, seven hundred sixteen thousand, two hundred seventeen".