11005217 has 4 divisors (see below), whose sum is σ = 11360256. Its totient is φ = 10650180.

The previous prime is 11005207. The next prime is 11005223. The reversal of 11005217 is 71250011.

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 11005217 - 2⁶ = 11005153 is a prime.

It is a super-2 number, since 2×11005217² = 242229602434178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11005195 and 11005204.

It is not an unprimeable number, because it can be changed into a prime (11005207) 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, 177473 + ... + 177534.

It is an arithmetic number, because the mean of its divisors is an integer number (2840064).

Almost surely, 2^11005217 is an apocalyptic number.

It is an amenable number.

11005217 is a deficient number, since it is larger than the sum of its proper divisors (355039).

11005217 is an equidigital number, since it uses as much as digits as its factorization.

11005217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355038.

The product of its (nonzero) digits is 70, while the sum is 17.

The square root of 11005217 is about 3317.4111894669. The cubic root of 11005217 is about 222.4331626035.

Adding to 11005217 its reverse (71250011), we get a palindrome (82255228).

The spelling of 11005217 in words is "eleven million, five thousand, two hundred seventeen".