86381191 has 8 divisors (see below), whose sum is σ = 93189600. Its totient is φ = 79596192.

The previous prime is 86381189. The next prime is 86381237. The reversal of 86381191 is 19118368.

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

It is not a de Polignac number, because 86381191 - 2¹ = 86381189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86381191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86381101) 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, 2241 + ... + 13333.

It is an arithmetic number, because the mean of its divisors is an integer number (11648700).

Almost surely, 2^86381191 is an apocalyptic number.

86381191 is a deficient number, since it is larger than the sum of its proper divisors (6808409).

86381191 is a wasteful number, since it uses less digits than its factorization.

86381191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11705.

The product of its digits is 10368, while the sum is 37.

The square root of 86381191 is about 9294.1482127197. The cubic root of 86381191 is about 442.0516974399.

The spelling of 86381191 in words is "eighty-six million, three hundred eighty-one thousand, one hundred ninety-one".