86566568 has 32 divisors (see below), whose sum is σ = 181193760. Its totient is φ = 38431680.

The previous prime is 86566561. The next prime is 86566577.

86566568 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (86566561) 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, 7655 + ... + 15222.

It is an arithmetic number, because the mean of its divisors is an integer number (5662305).

Almost surely, 2^86566568 is an apocalyptic number.

86566568 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

86566568 is an abundant number, since it is smaller than the sum of its proper divisors (94627192).

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

86566568 is a wasteful number, since it uses less digits than its factorization.

86566568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22937 (or 22933 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 50.

The square root of 86566568 is about 9304.1156484644. The cubic root of 86566568 is about 442.3676908738.

The spelling of 86566568 in words is "eighty-six million, five hundred sixty-six thousand, five hundred sixty-eight".