86339891 has 8 divisors (see below), whose sum is σ = 96486768. Its totient is φ = 76576000.

The previous prime is 86339887. The next prime is 86339899. The reversal of 86339891 is 19893368.

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 86339891 - 2² = 86339887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86339899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95270 + ... + 96171.

It is an arithmetic number, because the mean of its divisors is an integer number (12060846).

Almost surely, 2^86339891 is an apocalyptic number.

86339891 is a deficient number, since it is larger than the sum of its proper divisors (10146877).

86339891 is a wasteful number, since it uses less digits than its factorization.

86339891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191493.

The product of its digits is 279936, while the sum is 47.

The square root of 86339891 is about 9291.9261189486. The cubic root of 86339891 is about 441.9812359376.

The spelling of 86339891 in words is "eighty-six million, three hundred thirty-nine thousand, eight hundred ninety-one".