85750099 has 2 divisors, whose sum is σ = 85750100. Its totient is φ = 85750098.

The previous prime is 85750087. The next prime is 85750139. The reversal of 85750099 is 99005758.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85750099 - 2²⁵ = 52195667 is a prime.

It is not a weakly prime, because it can be changed into another prime (85750009) 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, 42875049 + 42875050.

It is an arithmetic number, because the mean of its divisors is an integer number (42875050).

Almost surely, 2^85750099 is an apocalyptic number.

85750099 is a deficient number, since it is larger than the sum of its proper divisors (1).

85750099 is an equidigital number, since it uses as much as digits as its factorization.

85750099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 43.

The square root of 85750099 is about 9260.1349342221. The cubic root of 85750099 is about 440.9725371668.

The spelling of 85750099 in words is "eighty-five million, seven hundred fifty thousand, ninety-nine".