11893209 has 8 divisors (see below), whose sum is σ = 16195200. Its totient is φ = 7760016.

The previous prime is 11893187. The next prime is 11893223. The reversal of 11893209 is 90239811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11893209 - 2⁸ = 11892953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11893209.

It is not an unprimeable number, because it can be changed into a prime (11893229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42034 + ... + 42315.

It is an arithmetic number, because the mean of its divisors is an integer number (2024400).

Almost surely, 2^11893209 is an apocalyptic number.

It is an amenable number.

11893209 is a deficient number, since it is larger than the sum of its proper divisors (4301991).

11893209 is an equidigital number, since it uses as much as digits as its factorization.

11893209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84399.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 11893209 is about 3448.6532153871. The cubic root of 11893209 is about 228.2616839975.

The spelling of 11893209 in words is "eleven million, eight hundred ninety-three thousand, two hundred nine".