11669888 has 64 divisors (see below), whose sum is σ = 25557120. Its totient is φ = 5283840.

The previous prime is 11669887. The next prime is 11669891. The reversal of 11669888 is 88896611.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11669887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67370 + ... + 67542.

It is an arithmetic number, because the mean of its divisors is an integer number (399330).

Almost surely, 2^11669888 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 11669888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12778560).

11669888 is an abundant number, since it is smaller than the sum of its proper divisors (13887232).

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

11669888 is a wasteful number, since it uses less digits than its factorization.

11669888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 223 counting only the distinct ones).

The product of its digits is 165888, while the sum is 47.

The square root of 11669888 is about 3416.1217776888. The cubic root of 11669888 is about 226.8239431334.

The spelling of 11669888 in words is "eleven million, six hundred sixty-nine thousand, eight hundred eighty-eight".