864300865 has 4 divisors (see below), whose sum is σ = 1037161044. Its totient is φ = 691440688.

The previous prime is 864300809. The next prime is 864300901. The reversal of 864300865 is 568003468.

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 593994384 + 270306481 = 24372^2 + 16441^2 .

It is a cyclic number.

It is not a de Polignac number, because 864300865 - 2¹⁷ = 864169793 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86430082 + ... + 86430091.

It is an arithmetic number, because the mean of its divisors is an integer number (259290261).

Almost surely, 2^864300865 is an apocalyptic number.

It is an amenable number.

864300865 is a deficient number, since it is larger than the sum of its proper divisors (172860179).

864300865 is a wasteful number, since it uses less digits than its factorization.

864300865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172860178.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 864300865 is about 29398.9942855194. The cubic root of 864300865 is about 952.5511723827.

The spelling of 864300865 in words is "eight hundred sixty-four million, three hundred thousand, eight hundred sixty-five".