8208666 has 12 divisors (see below), whose sum is σ = 17785482. Its totient is φ = 2736216.

The previous prime is 8208649. The next prime is 8208667. The reversal of 8208666 is 6668028.

It can be written as a sum of positive squares in only one way, i.e., 8208225 + 441 = 2865^2 + 21^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8208666.

It is not an unprimeable number, because it can be changed into a prime (8208667) 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 5 ways as a sum of consecutive naturals, for example, 228001 + ... + 228036.

Almost surely, 2^8208666 is an apocalyptic number.

8208666 is an abundant number, since it is smaller than the sum of its proper divisors (9576816).

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

8208666 is a wasteful number, since it uses less digits than its factorization.

8208666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456045 (or 456042 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 8208666 is about 2865.0769623171. The cubic root of 8208666 is about 201.7239800977.

The spelling of 8208666 in words is "eight million, two hundred eight thousand, six hundred sixty-six".