11223689 has 4 divisors (see below), whose sum is σ = 11883924. Its totient is φ = 10563456.

The previous prime is 11223683. The next prime is 11223697. The reversal of 11223689 is 98632211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3841600 + 7382089 = 1960^2 + 2717^2 .

It is a cyclic number.

It is not a de Polignac number, because 11223689 - 2⁴ = 11223673 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11223683) 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, 330092 + ... + 330125.

It is an arithmetic number, because the mean of its divisors is an integer number (2970981).

Almost surely, 2^11223689 is an apocalyptic number.

It is an amenable number.

11223689 is a deficient number, since it is larger than the sum of its proper divisors (660235).

11223689 is an equidigital number, since it uses as much as digits as its factorization.

11223689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660234.

The product of its digits is 5184, while the sum is 32.

The square root of 11223689 is about 3350.1774579864. The cubic root of 11223689 is about 223.8954191338.

The spelling of 11223689 in words is "eleven million, two hundred twenty-three thousand, six hundred eighty-nine".