11887 has 2 divisors, whose sum is σ = 11888.
Its totient is φ = 11886.
The previous prime is 11867. The next prime is 11897. The reversal of 11887 is 78811.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 11887 - 211 = 9839 is a prime.
11887 is a lucky number.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (11807) by changing a digit.
It is a good prime.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5943 + 5944.
It is an arithmetic number, because the mean of its divisors is an integer number (5944).
211887 is an apocalyptic number.
11887 is a deficient number, since it is larger than the sum of its proper divisors (1).
11887 is an equidigital number, since it uses as much as digits as its factorization.
11887 is an evil number, because the sum of its binary digits is even.
The product of its digits is 448, while the sum is 25.
The square root of 11887 is about 109.0275194618.
The cubic root of 11887 is about 22.8221954784.
It can be divided in two parts, 11 and 887, that added together give a palindrome (898).
The spelling of 11887 in words is "eleven thousand, eight hundred eighty-seven".