86397571 has 8 divisors (see below), whose sum is σ = 93638384. Its totient is φ = 79241760.

The previous prime is 86397539. The next prime is 86397581. The reversal of 86397571 is 17579368.

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

It is not a de Polignac number, because 86397571 - 2⁵ = 86397539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86397581) 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, 19125 + ... + 23206.

It is an arithmetic number, because the mean of its divisors is an integer number (11704798).

Almost surely, 2^86397571 is an apocalyptic number.

86397571 is a deficient number, since it is larger than the sum of its proper divisors (7240813).

86397571 is a wasteful number, since it uses less digits than its factorization.

86397571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42501.

The product of its digits is 317520, while the sum is 46.

The square root of 86397571 is about 9295.0293705830. The cubic root of 86397571 is about 442.0796369682.

It can be divided in two parts, 86397 and 571, that added together give a palindrome (86968).

The spelling of 86397571 in words is "eighty-six million, three hundred ninety-seven thousand, five hundred seventy-one".