8331666 has 48 divisors (see below), whose sum is σ = 20536416. Its totient is φ = 2239104.

The previous prime is 8331647. The next prime is 8331667. The reversal of 8331666 is 6661338.

8331666 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (8331667) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4165 + ... + 5831.

It is an arithmetic number, because the mean of its divisors is an integer number (427842).

Almost surely, 2^8331666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8331666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10268208).

8331666 is an abundant number, since it is smaller than the sum of its proper divisors (12204750).

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

8331666 is a wasteful number, since it uses less digits than its factorization.

8331666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703 (or 1696 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 8331666 is about 2886.4625408967. The cubic root of 8331666 is about 202.7265442064.

The spelling of 8331666 in words is "eight million, three hundred thirty-one thousand, six hundred sixty-six".