87085099 has 2 divisors, whose sum is σ = 87085100. Its totient is φ = 87085098.

The previous prime is 87085081. The next prime is 87085123. The reversal of 87085099 is 99058078.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87085099 - 2⁷ = 87084971 is a prime.

It is not a weakly prime, because it can be changed into another prime (87085039) 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 as a sum of consecutive naturals, namely, 43542549 + 43542550.

It is an arithmetic number, because the mean of its divisors is an integer number (43542550).

Almost surely, 2^87085099 is an apocalyptic number.

87085099 is a deficient number, since it is larger than the sum of its proper divisors (1).

87085099 is an equidigital number, since it uses as much as digits as its factorization.

87085099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 46.

The square root of 87085099 is about 9331.9397233373. The cubic root of 87085099 is about 443.2491893120.

The spelling of 87085099 in words is "eighty-seven million, eighty-five thousand, ninety-nine".