11885587 has 12 divisors (see below), whose sum is σ = 14150136. Its totient is φ = 9948960.

The previous prime is 11885569. The next prime is 11885597. The reversal of 11885587 is 78558811.

It is a happy number.

11885587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11885587 - 2⁷ = 11885459 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (11885527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 714 + ... + 4927.

It is an arithmetic number, because the mean of its divisors is an integer number (1179178).

Almost surely, 2^11885587 is an apocalyptic number.

11885587 is a deficient number, since it is larger than the sum of its proper divisors (2264549).

11885587 is an equidigital number, since it uses as much as digits as its factorization.

11885587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5698 (or 5691 counting only the distinct ones).

The product of its digits is 89600, while the sum is 43.

The square root of 11885587 is about 3447.5479692094. The cubic root of 11885587 is about 228.2129115607.

The spelling of 11885587 in words is "eleven million, eight hundred eighty-five thousand, five hundred eighty-seven".