8667666 has 24 divisors (see below), whose sum is σ = 21463104. Its totient is φ = 2476440.

The previous prime is 8667661. The next prime is 8667677. The reversal of 8667666 is 6667668.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8667661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34270 + ... + 34521.

It is an arithmetic number, because the mean of its divisors is an integer number (894296).

Almost surely, 2^8667666 is an apocalyptic number.

8667666 is an abundant number, since it is smaller than the sum of its proper divisors (12795438).

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

8667666 is a wasteful number, since it uses less digits than its factorization.

8667666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68806 (or 68803 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 8667666 is about 2944.0900122109. The cubic root of 8667666 is about 205.4158996625.

The spelling of 8667666 in words is "eight million, six hundred sixty-seven thousand, six hundred sixty-six".