11866197 has 8 divisors (see below), whose sum is σ = 18081856. Its totient is φ = 6780672.

The previous prime is 11866181. The next prime is 11866199. The reversal of 11866197 is 79166811.

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

It is not a de Polignac number, because 11866197 - 2⁴ = 11866181 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 (11866199) 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, 282508 + ... + 282549.

It is an arithmetic number, because the mean of its divisors is an integer number (2260232).

Almost surely, 2^11866197 is an apocalyptic number.

It is an amenable number.

11866197 is a deficient number, since it is larger than the sum of its proper divisors (6215659).

11866197 is an equidigital number, since it uses as much as digits as its factorization.

11866197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565067.

The product of its digits is 18144, while the sum is 39.

The square root of 11866197 is about 3444.7346777364. The cubic root of 11866197 is about 228.0887427709.

The spelling of 11866197 in words is "eleven million, eight hundred sixty-six thousand, one hundred ninety-seven".