11668243 has 4 divisors (see below), whose sum is σ = 11777400. Its totient is φ = 11559088.

The previous prime is 11668229. The next prime is 11668259. The reversal of 11668243 is 34286611.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11668243 - 2⁹ = 11667731 is a prime.

It is a super-2 number, since 2×11668243² = 272295789414098, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11668043) 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, 54418 + ... + 54631.

It is an arithmetic number, because the mean of its divisors is an integer number (2944350).

Almost surely, 2^11668243 is an apocalyptic number.

11668243 is a deficient number, since it is larger than the sum of its proper divisors (109157).

11668243 is a wasteful number, since it uses less digits than its factorization.

11668243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109156.

The product of its digits is 6912, while the sum is 31.

The square root of 11668243 is about 3415.8809990982. The cubic root of 11668243 is about 226.8132848501.

It can be divided in two parts, 11668 and 243, that added together give a palindrome (11911).

The spelling of 11668243 in words is "eleven million, six hundred sixty-eight thousand, two hundred forty-three".