85865441 has 4 divisors (see below), whose sum is σ = 85908672. Its totient is φ = 85822212.

The previous prime is 85865431. The next prime is 85865477. The reversal of 85865441 is 14456858.

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 85865441 - 2¹⁰ = 85864417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85865411) 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, 18485 + ... + 22658.

It is an arithmetic number, because the mean of its divisors is an integer number (21477168).

Almost surely, 2^85865441 is an apocalyptic number.

It is an amenable number.

85865441 is a deficient number, since it is larger than the sum of its proper divisors (43231).

85865441 is a wasteful number, since it uses less digits than its factorization.

85865441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43230.

The product of its digits is 153600, while the sum is 41.

The square root of 85865441 is about 9266.3607203691. The cubic root of 85865441 is about 441.1701651850.

The spelling of 85865441 in words is "eighty-five million, eight hundred sixty-five thousand, four hundred forty-one".