8281856 has 72 divisors (see below), whose sum is σ = 19205424. Its totient is φ = 3522560.

The previous prime is 8281837. The next prime is 8281859. The reversal of 8281856 is 6581828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8281859) 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, 47786 + ... + 47958.

It is an arithmetic number, because the mean of its divisors is an integer number (266742).

Almost surely, 2^8281856 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 8281856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9602712).

8281856 is an abundant number, since it is smaller than the sum of its proper divisors (10923568).

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

8281856 is a wasteful number, since it uses less digits than its factorization.

8281856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 203 counting only the distinct ones).

The product of its digits is 30720, while the sum is 38.

The square root of 8281856 is about 2877.8213982108. The cubic root of 8281856 is about 202.3217432470.

The spelling of 8281856 in words is "eight million, two hundred eighty-one thousand, eight hundred fifty-six".