11885859 has 24 divisors (see below), whose sum is σ = 18253872. Its totient is φ = 7724160.

The previous prime is 11885857. The next prime is 11885899. The reversal of 11885859 is 95858811.

It is not a de Polignac number, because 11885859 - 2¹ = 11885857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11885851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9367 + ... + 10559.

It is an arithmetic number, because the mean of its divisors is an integer number (760578).

Almost surely, 2^11885859 is an apocalyptic number.

11885859 is a deficient number, since it is larger than the sum of its proper divisors (6368013).

11885859 is an equidigital number, since it uses as much as digits as its factorization.

11885859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249 (or 1237 counting only the distinct ones).

The product of its digits is 115200, while the sum is 45.

The square root of 11885859 is about 3447.5874173108. The cubic root of 11885859 is about 228.2146524210.

The spelling of 11885859 in words is "eleven million, eight hundred eighty-five thousand, eight hundred fifty-nine".