11389585 has 4 divisors (see below), whose sum is σ = 13667508. Its totient is φ = 9111664.

The previous prime is 11389583. The next prime is 11389613. The reversal of 11389585 is 58598311.

11389585 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58598311 = 661 ⋅88651.

It can be written as a sum of positive squares in 2 ways, for example, as 2556801 + 8832784 = 1599^2 + 2972^2 .

It is a cyclic number.

It is not a de Polignac number, because 11389585 - 2¹ = 11389583 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11389583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1138954 + ... + 1138963.

It is an arithmetic number, because the mean of its divisors is an integer number (3416877).

Almost surely, 2^11389585 is an apocalyptic number.

It is an amenable number.

11389585 is a deficient number, since it is larger than the sum of its proper divisors (2277923).

11389585 is an equidigital number, since it uses as much as digits as its factorization.

11389585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277922.

The product of its digits is 43200, while the sum is 40.

The square root of 11389585 is about 3374.8459224089. The cubic root of 11389585 is about 224.9931520550.

It can be divided in two parts, 113 and 89585, that added together give a palindrome (89698).

The spelling of 11389585 in words is "eleven million, three hundred eighty-nine thousand, five hundred eighty-five".