11689608 has 64 divisors (see below), whose sum is σ = 35372160. Its totient is φ = 3142656.

The previous prime is 11689597. The next prime is 11689609. The reversal of 11689608 is 80698611.

It is not an unprimeable number, because it can be changed into a prime (11689609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 810 + ... + 4902.

It is an arithmetic number, because the mean of its divisors is an integer number (552690).

Almost surely, 2^11689608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11689608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17686080).

11689608 is an abundant number, since it is smaller than the sum of its proper divisors (23682552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11689608 is a wasteful number, since it uses less digits than its factorization.

11689608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4126 (or 4122 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 11689608 is about 3419.0068733479. The cubic root of 11689608 is about 226.9516350478.

The spelling of 11689608 in words is "eleven million, six hundred eighty-nine thousand, six hundred eight".