11611217 has 2 divisors, whose sum is σ = 11611218. Its totient is φ = 11611216.

The previous prime is 11611199. The next prime is 11611219. The reversal of 11611217 is 71211611.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8042896 + 3568321 = 2836^2 + 1889^2 .

It is a cyclic number.

It is not a de Polignac number, because 11611217 - 2⁸ = 11610961 is a prime.

Together with 11611219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11611219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5805608 + 5805609.

It is an arithmetic number, because the mean of its divisors is an integer number (5805609).

Almost surely, 2^11611217 is an apocalyptic number.

It is an amenable number.

11611217 is a deficient number, since it is larger than the sum of its proper divisors (1).

11611217 is an equidigital number, since it uses as much as digits as its factorization.

11611217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84, while the sum is 20.

The square root of 11611217 is about 3407.5235875926. The cubic root of 11611217 is about 226.4431810593.

Adding to 11611217 its reverse (71211611), we get a palindrome (82822828).

The spelling of 11611217 in words is "eleven million, six hundred eleven thousand, two hundred seventeen".