8466656 has 48 divisors (see below), whose sum is σ = 18506880. Its totient is φ = 3780480.

The previous prime is 8466611. The next prime is 8466671. The reversal of 8466656 is 6566648.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23405 + ... + 23763.

It is an arithmetic number, because the mean of its divisors is an integer number (385560).

Almost surely, 2^8466656 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 8466656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9253440).

8466656 is an abundant number, since it is smaller than the sum of its proper divisors (10040224).

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

8466656 is a wasteful number, since it uses less digits than its factorization.

8466656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447 (or 439 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 8466656 is about 2909.7518794564. The cubic root of 8466656 is about 203.8155451737.

It can be divided in two parts, 8 and 466656, that added together give a palindrome (466664).

The spelling of 8466656 in words is "eight million, four hundred sixty-six thousand, six hundred fifty-six".