8478256 has 30 divisors (see below), whose sum is σ = 17395340. Its totient is φ = 3991968.

The previous prime is 8478209. The next prime is 8478259. The reversal of 8478256 is 6528748.

It is not an unprimeable number, because it can be changed into a prime (8478259) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50685 + ... + 50851.

Almost surely, 2^8478256 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 8478256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8697670).

8478256 is an abundant number, since it is smaller than the sum of its proper divisors (8917084).

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

8478256 is a wasteful number, since it uses less digits than its factorization.

8478256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361 (or 188 counting only the distinct ones).

The product of its digits is 107520, while the sum is 40.

The square root of 8478256 is about 2911.7444942852. The cubic root of 8478256 is about 203.9085839288.

The spelling of 8478256 in words is "eight million, four hundred seventy-eight thousand, two hundred fifty-six".