11685223 has 4 divisors (see below), whose sum is σ = 12747528. Its totient is φ = 10622920.

The previous prime is 11685211. The next prime is 11685227. The reversal of 11685223 is 32258611.

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

It is a de Polignac number, because none of the positive numbers 2^k-11685223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11685191 and 11685200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11685227) 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, 531136 + ... + 531157.

It is an arithmetic number, because the mean of its divisors is an integer number (3186882).

Almost surely, 2^11685223 is an apocalyptic number.

11685223 is a deficient number, since it is larger than the sum of its proper divisors (1062305).

11685223 is a wasteful number, since it uses less digits than its factorization.

11685223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062304.

The product of its digits is 2880, while the sum is 28.

The square root of 11685223 is about 3418.3655451107. The cubic root of 11685223 is about 226.9232535035.

The spelling of 11685223 in words is "eleven million, six hundred eighty-five thousand, two hundred twenty-three".