86591043 has 24 divisors (see below), whose sum is σ = 155940096. Its totient is φ = 44982000.

The previous prime is 86591041. The next prime is 86591077. The reversal of 86591043 is 34019568.

It is not a de Polignac number, because 86591043 - 2¹ = 86591041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86590989 and 86591007.

It is not an unprimeable number, because it can be changed into a prime (86591041) 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 23 ways as a sum of consecutive naturals, for example, 61783 + ... + 63168.

It is an arithmetic number, because the mean of its divisors is an integer number (6497504).

Almost surely, 2^86591043 is an apocalyptic number.

86591043 is a deficient number, since it is larger than the sum of its proper divisors (69349053).

86591043 is a wasteful number, since it uses less digits than its factorization.

86591043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124975 (or 124972 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 86591043 is about 9305.4308336584. The cubic root of 86591043 is about 442.4093772095.

The spelling of 86591043 in words is "eighty-six million, five hundred ninety-one thousand, forty-three".