11686613 has 4 divisors (see below), whose sum is σ = 11720640. Its totient is φ = 11652588.

The previous prime is 11686603. The next prime is 11686621. The reversal of 11686613 is 31668611.

11686613 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11686613 - 2²⁰ = 10638037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11686613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11686603) 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, 16493 + ... + 17186.

It is an arithmetic number, because the mean of its divisors is an integer number (2930160).

Almost surely, 2^11686613 is an apocalyptic number.

It is an amenable number.

11686613 is a deficient number, since it is larger than the sum of its proper divisors (34027).

11686613 is an equidigital number, since it uses as much as digits as its factorization.

11686613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34026.

The product of its digits is 5184, while the sum is 32.

The square root of 11686613 is about 3418.5688526048. The cubic root of 11686613 is about 226.9322509303.

The spelling of 11686613 in words is "eleven million, six hundred eighty-six thousand, six hundred thirteen".