11788171 has 4 divisors (see below), whose sum is σ = 11795344. Its totient is φ = 11781000.

The previous prime is 11788159. The next prime is 11788177. The reversal of 11788171 is 17188711.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 11788171 - 2¹¹ = 11786123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11788177) 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, 241 + ... + 4861.

It is an arithmetic number, because the mean of its divisors is an integer number (2948836).

Almost surely, 2^11788171 is an apocalyptic number.

11788171 is a deficient number, since it is larger than the sum of its proper divisors (7173).

11788171 is an equidigital number, since it uses as much as digits as its factorization.

11788171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7172.

The product of its digits is 3136, while the sum is 34.

The square root of 11788171 is about 3433.3905982279. The cubic root of 11788171 is about 227.5877116202.

It can be divided in two parts, 117 and 88171, that added together give a palindrome (88288).

The spelling of 11788171 in words is "eleven million, seven hundred eighty-eight thousand, one hundred seventy-one".