8616865 has 8 divisors (see below), whose sum is σ = 10378728. Its totient is φ = 6867840.

The previous prime is 8616859. The next prime is 8616869. The reversal of 8616865 is 5686168.

It is a happy number.

8616865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3701776 + 4915089 = 1924^2 + 2217^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8616865 - 2⁵ = 8616833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8616869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1662 + ... + 4471.

It is an arithmetic number, because the mean of its divisors is an integer number (1297341).

Almost surely, 2^8616865 is an apocalyptic number.

It is an amenable number.

8616865 is a deficient number, since it is larger than the sum of its proper divisors (1761863).

8616865 is a wasteful number, since it uses less digits than its factorization.

8616865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6419.

The product of its digits is 69120, while the sum is 40.

The square root of 8616865 is about 2935.4497100104. The cubic root of 8616865 is about 205.0138003797.

The spelling of 8616865 in words is "eight million, six hundred sixteen thousand, eight hundred sixty-five".