85115799 has 16 divisors (see below), whose sum is σ = 129507040. Its totient is φ = 55209600.

The previous prime is 85115759. The next prime is 85115837. The reversal of 85115799 is 99751158.

It is not a de Polignac number, because 85115799 - 2¹⁶ = 85050263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85115759) 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 15 ways as a sum of consecutive naturals, for example, 41602 + ... + 43599.

It is an arithmetic number, because the mean of its divisors is an integer number (8094190).

Almost surely, 2^85115799 is an apocalyptic number.

85115799 is a deficient number, since it is larger than the sum of its proper divisors (44391241).

85115799 is a wasteful number, since it uses less digits than its factorization.

85115799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85247 (or 85241 counting only the distinct ones).

The product of its digits is 113400, while the sum is 45.

The square root of 85115799 is about 9225.8224023661. The cubic root of 85115799 is about 439.8825426836.

The spelling of 85115799 in words is "eighty-five million, one hundred fifteen thousand, seven hundred ninety-nine".