11688611 has 4 divisors (see below), whose sum is σ = 12751224. Its totient is φ = 10626000.

The previous prime is 11688587. The next prime is 11688631.

11688611 is nontrivially palindromic in base 10.

11688611 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.

It is not a de Polignac number, because 11688611 - 2¹⁰ = 11687587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11688631) 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, 531290 + ... + 531311.

It is an arithmetic number, because the mean of its divisors is an integer number (3187806).

Almost surely, 2^11688611 is an apocalyptic number.

11688611 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11688611 is a deficient number, since it is larger than the sum of its proper divisors (1062613).

11688611 is a wasteful number, since it uses less digits than its factorization.

11688611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062612.

The product of its digits is 2304, while the sum is 32.

The square root of 11688611 is about 3418.8610676657. The cubic root of 11688611 is about 226.9451826725.

It can be divided in two parts, 1168 and 8611, that added together give a palindrome (9779).

The spelling of 11688611 in words is "eleven million, six hundred eighty-eight thousand, six hundred eleven".