8478866 has 8 divisors (see below), whose sum is σ = 13874544. Its totient is φ = 3854020.

The previous prime is 8478863. The next prime is 8478889. The reversal of 8478866 is 6688748.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 8478866.

It is not an unprimeable number, because it can be changed into a prime (8478863) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 192680 + ... + 192723.

It is an arithmetic number, because the mean of its divisors is an integer number (1734318).

Almost surely, 2^8478866 is an apocalyptic number.

8478866 is a deficient number, since it is larger than the sum of its proper divisors (5395678).

8478866 is a wasteful number, since it uses less digits than its factorization.

8478866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385416.

The product of its digits is 516096, while the sum is 47.

The square root of 8478866 is about 2911.8492406030. The cubic root of 8478866 is about 203.9134741347.

It can be divided in two parts, 8 and 478866, that added together give a palindrome (478874).

The spelling of 8478866 in words is "eight million, four hundred seventy-eight thousand, eight hundred sixty-six".