11808585 has 24 divisors (see below), whose sum is σ = 21228480. Its totient is φ = 6297264.

The previous prime is 11808583. The next prime is 11808607. The reversal of 11808585 is 58580811.

11808585 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11808585 - 2¹ = 11808583 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11808581) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3645 + ... + 6074.

It is an arithmetic number, because the mean of its divisors is an integer number (884520).

Almost surely, 2^11808585 is an apocalyptic number.

11808585 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11808585 is a deficient number, since it is larger than the sum of its proper divisors (9419895).

11808585 is an frugal number, since it uses more digits than its factorization.

11808585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9739 (or 9727 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 36.

The square root of 11808585 is about 3436.3621753244. The cubic root of 11808585 is about 227.7190098019.

The spelling of 11808585 in words is "eleven million, eight hundred eight thousand, five hundred eighty-five".