11886197 has 4 divisors (see below), whose sum is σ = 11895180. Its totient is φ = 11877216.

The previous prime is 11886169. The next prime is 11886223. The reversal of 11886197 is 79168811.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 79168811 = 29 ⋅2729959.

It can be written as a sum of positive squares in 2 ways, for example, as 9449476 + 2436721 = 3074^2 + 1561^2 .

It is a cyclic number.

It is not a de Polignac number, because 11886197 - 2¹⁰ = 11885173 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 (11886107) 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, 2072 + ... + 5297.

It is an arithmetic number, because the mean of its divisors is an integer number (2973795).

Almost surely, 2^11886197 is an apocalyptic number.

It is an amenable number.

11886197 is a deficient number, since it is larger than the sum of its proper divisors (8983).

11886197 is an equidigital number, since it uses as much as digits as its factorization.

11886197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8982.

The product of its digits is 24192, while the sum is 41.

The square root of 11886197 is about 3447.6364367491. The cubic root of 11886197 is about 228.2168156589.

The spelling of 11886197 in words is "eleven million, eight hundred eighty-six thousand, one hundred ninety-seven".