11216689 has 4 divisors (see below), whose sum is σ = 12236400. Its totient is φ = 10196980.

The previous prime is 11216683. The next prime is 11216693. The reversal of 11216689 is 98661211.

11216689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-11216689 is a prime.

It is a super-2 number, since 2×11216689² = 251628224245442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11216683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509839 + ... + 509860.

It is an arithmetic number, because the mean of its divisors is an integer number (3059100).

Almost surely, 2^11216689 is an apocalyptic number.

It is an amenable number.

11216689 is a deficient number, since it is larger than the sum of its proper divisors (1019711).

11216689 is a wasteful number, since it uses less digits than its factorization.

11216689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019710.

The product of its digits is 5184, while the sum is 34.

The square root of 11216689 is about 3349.1325742646. The cubic root of 11216689 is about 223.8488630246.

The spelling of 11216689 in words is "eleven million, two hundred sixteen thousand, six hundred eighty-nine".