11668573 has 4 divisors (see below), whose sum is σ = 13335520. Its totient is φ = 10001628.

The previous prime is 11668541. The next prime is 11668583. The reversal of 11668573 is 37586611.

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 not a de Polignac number, because 11668573 - 2⁵ = 11668541 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 (11668513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833463 + ... + 833476.

It is an arithmetic number, because the mean of its divisors is an integer number (3333880).

Almost surely, 2^11668573 is an apocalyptic number.

It is an amenable number.

11668573 is a deficient number, since it is larger than the sum of its proper divisors (1666947).

11668573 is an equidigital number, since it uses as much as digits as its factorization.

11668573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666946.

The product of its digits is 30240, while the sum is 37.

The square root of 11668573 is about 3415.9293025471. The cubic root of 11668573 is about 226.8154230662.

The spelling of 11668573 in words is "eleven million, six hundred sixty-eight thousand, five hundred seventy-three".