11217607 has 4 divisors (see below), whose sum is σ = 11253760. Its totient is φ = 11181456.

The previous prime is 11217601. The next prime is 11217617. The reversal of 11217607 is 70671211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70671211 = 13 ⋅5436247.

It is a cyclic number.

It is not a de Polignac number, because 11217607 - 2³ = 11217599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11217601) 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, 17607 + ... + 18232.

It is an arithmetic number, because the mean of its divisors is an integer number (2813440).

Almost surely, 2^11217607 is an apocalyptic number.

11217607 is a deficient number, since it is larger than the sum of its proper divisors (36153).

11217607 is an equidigital number, since it uses as much as digits as its factorization.

11217607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36152.

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 11217607 is about 3349.2696218728. The cubic root of 11217607 is about 223.8549696291.

Adding to 11217607 its reverse (70671211), we get a palindrome (81888818).

The spelling of 11217607 in words is "eleven million, two hundred seventeen thousand, six hundred seven".