11669988 has 48 divisors (see below), whose sum is σ = 29917440. Its totient is φ = 3511200.

The previous prime is 11669969. The next prime is 11670011. The reversal of 11669988 is 88996611.

Its product of digits (186624) is a multiple of the sum of its prime factors (648).

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27643 + ... + 28061.

It is an arithmetic number, because the mean of its divisors is an integer number (623280).

Almost surely, 2^11669988 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 11669988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14958720).

11669988 is an abundant number, since it is smaller than the sum of its proper divisors (18247452).

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

11669988 is a wasteful number, since it uses less digits than its factorization.

11669988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648 (or 646 counting only the distinct ones).

The product of its digits is 186624, while the sum is 48.

The square root of 11669988 is about 3416.1364141381. The cubic root of 11669988 is about 226.8245910211.

The spelling of 11669988 in words is "eleven million, six hundred sixty-nine thousand, nine hundred eighty-eight".