86508481 has 4 divisors (see below), whose sum is σ = 86694192. Its totient is φ = 86322772.

The previous prime is 86508469. The next prime is 86508491. The reversal of 86508481 is 18480568.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86508481 - 2⁵ = 86508449 is a prime.

It is a super-2 number, since 2×86508481² = 14967434569854722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86508491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92155 + ... + 93088.

It is an arithmetic number, because the mean of its divisors is an integer number (21673548).

Almost surely, 2^86508481 is an apocalyptic number.

It is an amenable number.

86508481 is a deficient number, since it is larger than the sum of its proper divisors (185711).

86508481 is a wasteful number, since it uses less digits than its factorization.

86508481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185710.

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 86508481 is about 9300.9935490785. The cubic root of 86508481 is about 442.2687244092.

The spelling of 86508481 in words is "eighty-six million, five hundred eight thousand, four hundred eighty-one".