11959585 has 16 divisors (see below), whose sum is σ = 16578432. Its totient is φ = 8185600.

The previous prime is 11959579. The next prime is 11959601. The reversal of 11959585 is 58595911.

It is not a de Polignac number, because 11959585 - 2¹⁹ = 11435297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5461 + ... + 7330.

It is an arithmetic number, because the mean of its divisors is an integer number (1036152).

Almost surely, 2^11959585 is an apocalyptic number.

It is an amenable number.

11959585 is a deficient number, since it is larger than the sum of its proper divisors (4618847).

11959585 is a wasteful number, since it uses less digits than its factorization.

11959585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12824.

The product of its digits is 81000, while the sum is 43.

The square root of 11959585 is about 3458.2632924634. The cubic root of 11959585 is about 228.6855392837.

It can be divided in two parts, 11959 and 585, that added together give a square (12544 = 112²).

The spelling of 11959585 in words is "eleven million, nine hundred fifty-nine thousand, five hundred eighty-five".