85995807 has 16 divisors (see below), whose sum is σ = 118136832. Its totient is φ = 55602720.

The previous prime is 85995761. The next prime is 85995821. The reversal of 85995807 is 70859958.

It is not a de Polignac number, because 85995807 - 2¹⁸ = 85733663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85995807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85995607) 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 in 15 ways as a sum of consecutive naturals, for example, 39682 + ... + 41792.

It is an arithmetic number, because the mean of its divisors is an integer number (7383552).

Almost surely, 2^85995807 is an apocalyptic number.

85995807 is a deficient number, since it is larger than the sum of its proper divisors (32141025).

85995807 is a wasteful number, since it uses less digits than its factorization.

85995807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518.

The product of its (nonzero) digits is 907200, while the sum is 51.

The square root of 85995807 is about 9273.3924213310. The cubic root of 85995807 is about 441.3933225141.

The spelling of 85995807 in words is "eighty-five million, nine hundred ninety-five thousand, eight hundred seven".