11984191 has 8 divisors (see below), whose sum is σ = 12228944. Its totient is φ = 11741760.

The previous prime is 11984183. The next prime is 11984209. The reversal of 11984191 is 19148911.

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

It is a cyclic number.

It is not a de Polignac number, because 11984191 - 2³ = 11984183 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 (11984131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12760 + ... + 13666.

It is an arithmetic number, because the mean of its divisors is an integer number (1528618).

Almost surely, 2^11984191 is an apocalyptic number.

11984191 is a deficient number, since it is larger than the sum of its proper divisors (244753).

11984191 is an equidigital number, since it uses as much as digits as its factorization.

11984191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161.

The product of its digits is 2592, while the sum is 34.

The square root of 11984191 is about 3461.8190305098. The cubic root of 11984191 is about 228.8422666202.

The spelling of 11984191 in words is "eleven million, nine hundred eighty-four thousand, one hundred ninety-one".