85862389 has 4 divisors (see below), whose sum is σ = 86101920. Its totient is φ = 85622860.

The previous prime is 85862347. The next prime is 85862401. The reversal of 85862389 is 98326858.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85862389 - 2⁹ = 85861877 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 (85862489) 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, 119227 + ... + 119944.

It is an arithmetic number, because the mean of its divisors is an integer number (21525480).

Almost surely, 2^85862389 is an apocalyptic number.

It is an amenable number.

85862389 is a deficient number, since it is larger than the sum of its proper divisors (239531).

85862389 is a wasteful number, since it uses less digits than its factorization.

85862389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239530.

The product of its digits is 829440, while the sum is 49.

The square root of 85862389 is about 9266.1960372097. The cubic root of 85862389 is about 441.1649381411.

The spelling of 85862389 in words is "eighty-five million, eight hundred sixty-two thousand, three hundred eighty-nine".