85685599 has 8 divisors (see below), whose sum is σ = 88353648. Its totient is φ = 83036160.

The previous prime is 85685591. The next prime is 85685647. The reversal of 85685599 is 99558658.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85685599 - 2³ = 85685591 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 (85685591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5004 + ... + 14014.

It is an arithmetic number, because the mean of its divisors is an integer number (11044206).

Almost surely, 2^85685599 is an apocalyptic number.

85685599 is a deficient number, since it is larger than the sum of its proper divisors (2668049).

85685599 is a wasteful number, since it uses less digits than its factorization.

85685599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9305.

The product of its digits is 3888000, while the sum is 55.

The square root of 85685599 is about 9256.6516084381. The cubic root of 85685599 is about 440.8619450183.

The spelling of 85685599 in words is "eighty-five million, six hundred eighty-five thousand, five hundred ninety-nine".