86205499 has 2 divisors, whose sum is σ = 86205500. Its totient is φ = 86205498.

The previous prime is 86205491. The next prime is 86205503. The reversal of 86205499 is 99450268.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86205499 - 2³ = 86205491 is a prime.

It is not a weakly prime, because it can be changed into another prime (86205491) 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 as a sum of consecutive naturals, namely, 43102749 + 43102750.

It is an arithmetic number, because the mean of its divisors is an integer number (43102750).

Almost surely, 2^86205499 is an apocalyptic number.

86205499 is a deficient number, since it is larger than the sum of its proper divisors (1).

86205499 is an equidigital number, since it uses as much as digits as its factorization.

86205499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 86205499 is about 9284.6916480840. The cubic root of 86205499 is about 441.7517954970.

The spelling of 86205499 in words is "eighty-six million, two hundred five thousand, four hundred ninety-nine".