8811660 has 144 divisors (see below), whose sum is σ = 29514240. Its totient is φ = 1946880.

The previous prime is 8811659. The next prime is 8811667. The reversal of 8811660 is 661188.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (8811667) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 111501 + ... + 111579.

It is an arithmetic number, because the mean of its divisors is an integer number (204960).

Almost surely, 2^8811660 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 8811660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14757120).

8811660 is an abundant number, since it is smaller than the sum of its proper divisors (20702580).

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

8811660 is a wasteful number, since it uses less digits than its factorization.

8811660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 8811660 is about 2968.4440368651. Note that the first 3 decimals coincide. The cubic root of 8811660 is about 206.5471675912.

The spelling of 8811660 in words is "eight million, eight hundred eleven thousand, six hundred sixty".