11688487 has 4 divisors (see below), whose sum is σ = 11712976. Its totient is φ = 11664000.

The previous prime is 11688473. The next prime is 11688499. The reversal of 11688487 is 78488611.

11688487 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 a cyclic number.

It is not a de Polignac number, because 11688487 - 2¹¹ = 11686439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11688407) 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, 11514 + ... + 12487.

It is an arithmetic number, because the mean of its divisors is an integer number (2928244).

Almost surely, 2^11688487 is an apocalyptic number.

11688487 is a deficient number, since it is larger than the sum of its proper divisors (24489).

11688487 is an equidigital number, since it uses as much as digits as its factorization.

11688487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24488.

The product of its digits is 86016, while the sum is 43.

The square root of 11688487 is about 3418.8429329234. The cubic root of 11688487 is about 226.9443801449.

The spelling of 11688487 in words is "eleven million, six hundred eighty-eight thousand, four hundred eighty-seven".