86500543 has 2 divisors, whose sum is σ = 86500544. Its totient is φ = 86500542.

The previous prime is 86500537. The next prime is 86500577. The reversal of 86500543 is 34500568.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86500543 - 2¹⁷ = 86369471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86500643) 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 as a sum of consecutive naturals, namely, 43250271 + 43250272.

It is an arithmetic number, because the mean of its divisors is an integer number (43250272).

Almost surely, 2^86500543 is an apocalyptic number.

86500543 is a deficient number, since it is larger than the sum of its proper divisors (1).

86500543 is an equidigital number, since it uses as much as digits as its factorization.

86500543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 86500543 is about 9300.5668106842. The cubic root of 86500543 is about 442.2551965004.

The spelling of 86500543 in words is "eighty-six million, five hundred thousand, five hundred forty-three".