86205099 has 4 divisors (see below), whose sum is σ = 114940136. Its totient is φ = 57470064.

The previous prime is 86205073. The next prime is 86205121. The reversal of 86205099 is 99050268.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 86205099 - 2⁷ = 86204971 is a prime.

It is a super-3 number, since 3×86205099³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86205029) 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 3 ways as a sum of consecutive naturals, for example, 14367514 + ... + 14367519.

It is an arithmetic number, because the mean of its divisors is an integer number (28735034).

Almost surely, 2^86205099 is an apocalyptic number.

86205099 is a deficient number, since it is larger than the sum of its proper divisors (28735037).

86205099 is a wasteful number, since it uses less digits than its factorization.

86205099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28735036.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 86205099 is about 9284.6701072251. The cubic root of 86205099 is about 441.7511122421.

The spelling of 86205099 in words is "eighty-six million, two hundred five thousand, ninety-nine".