85368589 has 4 divisors (see below), whose sum is σ = 85393980. Its totient is φ = 85343200.

The previous prime is 85368587. The next prime is 85368599. The reversal of 85368589 is 98586358.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28622500 + 56746089 = 5350^2 + 7533^2 .

It is a cyclic number.

It is not a de Polignac number, because 85368589 - 2¹ = 85368587 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 (85368581) 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, 6712 + ... + 14689.

It is an arithmetic number, because the mean of its divisors is an integer number (21348495).

Almost surely, 2^85368589 is an apocalyptic number.

It is an amenable number.

85368589 is a deficient number, since it is larger than the sum of its proper divisors (25391).

85368589 is a wasteful number, since it uses less digits than its factorization.

85368589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25390.

The product of its digits is 2073600, while the sum is 52.

The square root of 85368589 is about 9239.5123789083. The cubic root of 85368589 is about 440.3175892371.

The spelling of 85368589 in words is "eighty-five million, three hundred sixty-eight thousand, five hundred eighty-nine".