86854591 has 8 divisors (see below), whose sum is σ = 89921664. Its totient is φ = 83804160.

The previous prime is 86854589. The next prime is 86854613. The reversal of 86854591 is 19545868.

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

It is not a de Polignac number, because 86854591 - 2¹ = 86854589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86854991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6975 + ... + 14911.

It is an arithmetic number, because the mean of its divisors is an integer number (11240208).

Almost surely, 2^86854591 is an apocalyptic number.

86854591 is a deficient number, since it is larger than the sum of its proper divisors (3067073).

86854591 is a wasteful number, since it uses less digits than its factorization.

86854591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8321.

The product of its digits is 345600, while the sum is 46.

The square root of 86854591 is about 9319.5810528156. The cubic root of 86854591 is about 442.8577608286.

The spelling of 86854591 in words is "eighty-six million, eight hundred fifty-four thousand, five hundred ninety-one".