86382531 has 60 divisors (see below), whose sum is σ = 143007480. Its totient is φ = 51788160.

The previous prime is 86382529. The next prime is 86382551. The reversal of 86382531 is 13528368.

It is not a de Polignac number, because 86382531 - 2¹ = 86382529 is a prime.

It is a super-2 number, since 2×86382531² = 14923883323931922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86382521) 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 59 ways as a sum of consecutive naturals, for example, 2106871 + ... + 2106911.

It is an arithmetic number, because the mean of its divisors is an integer number (2383458).

Almost surely, 2^86382531 is an apocalyptic number.

86382531 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

86382531 is a deficient number, since it is larger than the sum of its proper divisors (56624949).

86382531 is a wasteful number, since it uses less digits than its factorization.

86382531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 100 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 86382531 is about 9294.2203008106. The cubic root of 86382531 is about 442.0539832238.

The spelling of 86382531 in words is "eighty-six million, three hundred eighty-two thousand, five hundred thirty-one".