85995089 has 4 divisors (see below), whose sum is σ = 86041956. Its totient is φ = 85948224.

The previous prime is 85995079. The next prime is 85995127. The reversal of 85995089 is 98059958.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98059958 = 2 ⋅49029979.

It can be written as a sum of positive squares in 2 ways, for example, as 82664464 + 3330625 = 9092^2 + 1825^2 .

It is a cyclic number.

It is not a de Polignac number, because 85995089 - 2⁸ = 85994833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85995089.

It is not an unprimeable number, because it can be changed into a prime (85995029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20564 + ... + 24389.

It is an arithmetic number, because the mean of its divisors is an integer number (21510489).

Almost surely, 2^85995089 is an apocalyptic number.

It is an amenable number.

85995089 is a deficient number, since it is larger than the sum of its proper divisors (46867).

85995089 is a wasteful number, since it uses less digits than its factorization.

85995089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46866.

The product of its (nonzero) digits is 1166400, while the sum is 53.

The square root of 85995089 is about 9273.3537083409. The cubic root of 85995089 is about 441.3920940772.

The spelling of 85995089 in words is "eighty-five million, nine hundred ninety-five thousand, eighty-nine".