86009881 has 8 divisors (see below), whose sum is σ = 86700800. Its totient is φ = 85322160.

The previous prime is 86009873. The next prime is 86009909. The reversal of 86009881 is 18890068.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86009881 - 2³ = 86009873 is a prime.

It is a super-2 number, since 2×86009881² = 14795399259268322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86009801) 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, 86296 + ... + 87286.

It is an arithmetic number, because the mean of its divisors is an integer number (10837600).

Almost surely, 2^86009881 is an apocalyptic number.

It is an amenable number.

86009881 is a deficient number, since it is larger than the sum of its proper divisors (690919).

86009881 is a wasteful number, since it uses less digits than its factorization.

86009881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599.

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 86009881 is about 9274.1512280100. The cubic root of 86009881 is about 441.4174005515.

It can be divided in two parts, 8600 and 9881, that added together give a palindrome (18481).

The spelling of 86009881 in words is "eighty-six million, nine thousand, eight hundred eighty-one".