8701865 has 4 divisors (see below), whose sum is σ = 10442244. Its totient is φ = 6961488.

The previous prime is 8701853. The next prime is 8701871. The reversal of 8701865 is 5681078.

It is a happy number.

8701865 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6651241 + 2050624 = 2579^2 + 1432^2 .

It is a cyclic number.

It is not a de Polignac number, because 8701865 - 2¹² = 8697769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 870182 + ... + 870191.

It is an arithmetic number, because the mean of its divisors is an integer number (2610561).

Almost surely, 2^8701865 is an apocalyptic number.

It is an amenable number.

8701865 is a deficient number, since it is larger than the sum of its proper divisors (1740379).

8701865 is a wasteful number, since it uses less digits than its factorization.

8701865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740378.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 8701865 is about 2949.8923709180. The cubic root of 8701865 is about 205.6857069858.

The spelling of 8701865 in words is "eight million, seven hundred one thousand, eight hundred sixty-five".