85897599 has 4 divisors (see below), whose sum is σ = 114530136. Its totient is φ = 57265064.

The previous prime is 85897597. The next prime is 85897627. The reversal of 85897599 is 99579858.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85897599 - 2¹ = 85897597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85897597) 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 3 ways as a sum of consecutive naturals, for example, 14316264 + ... + 14316269.

It is an arithmetic number, because the mean of its divisors is an integer number (28632534).

Almost surely, 2^85897599 is an apocalyptic number.

85897599 is a deficient number, since it is larger than the sum of its proper divisors (28632537).

85897599 is a wasteful number, since it uses less digits than its factorization.

85897599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28632536.

The product of its digits is 8164800, while the sum is 60.

The square root of 85897599 is about 9268.0957591082. The cubic root of 85897599 is about 441.2252334378.

The spelling of 85897599 in words is "eighty-five million, eight hundred ninety-seven thousand, five hundred ninety-nine".