86559856 has 40 divisors (see below), whose sum is σ = 179301024. Its totient is φ = 40381440.

The previous prime is 86559841. The next prime is 86559859. The reversal of 86559856 is 65895568.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86559859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12220 + ... + 17956.

Almost surely, 2^86559856 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 86559856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89650512).

86559856 is an abundant number, since it is smaller than the sum of its proper divisors (92741168).

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

86559856 is a wasteful number, since it uses less digits than its factorization.

86559856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5809 (or 5803 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 52.

The square root of 86559856 is about 9303.7549408827. The cubic root of 86559856 is about 442.3562574812.

The spelling of 86559856 in words is "eighty-six million, five hundred fifty-nine thousand, eight hundred fifty-six".