8490666 has 16 divisors (see below), whose sum is σ = 17150688. Its totient is φ = 2802000.

The previous prime is 8490661. The next prime is 8490673. The reversal of 8490666 is 6660948.

It is not an unprimeable number, because it can be changed into a prime (8490661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6400 + ... + 7611.

It is an arithmetic number, because the mean of its divisors is an integer number (1071918).

Almost surely, 2^8490666 is an apocalyptic number.

8490666 is an abundant number, since it is smaller than the sum of its proper divisors (8660022).

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

8490666 is a wasteful number, since it uses less digits than its factorization.

8490666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14117.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 8490666 is about 2913.8747399296. The cubic root of 8490666 is about 204.0080254436.

The spelling of 8490666 in words is "eight million, four hundred ninety thousand, six hundred sixty-six".