11988593 has 4 divisors (see below), whose sum is σ = 12021108. Its totient is φ = 11956080.

The previous prime is 11988577. The next prime is 11988607. The reversal of 11988593 is 39588911.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39588911 = 23 ⋅1721257.

It can be written as a sum of positive squares in 2 ways, for example, as 9935104 + 2053489 = 3152^2 + 1433^2 .

It is a cyclic number.

It is not a de Polignac number, because 11988593 - 2⁴ = 11988577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11988533) 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, 15698 + ... + 16443.

It is an arithmetic number, because the mean of its divisors is an integer number (3005277).

Almost surely, 2^11988593 is an apocalyptic number.

It is an amenable number.

11988593 is a deficient number, since it is larger than the sum of its proper divisors (32515).

11988593 is an equidigital number, since it uses as much as digits as its factorization.

11988593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32514.

The product of its digits is 77760, while the sum is 44.

The square root of 11988593 is about 3462.4547650475. The cubic root of 11988593 is about 228.8702824271.

The spelling of 11988593 in words is "eleven million, nine hundred eighty-eight thousand, five hundred ninety-three".