10000865 has 16 divisors (see below), whose sum is σ = 13807488. Its totient is φ = 6811776.

The previous prime is 10000849. The next prime is 10000867. The reversal of 10000865 is 56800001.

10000865 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 10000865 - 2⁴ = 10000849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10000867) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4829 + ... + 6581.

It is an arithmetic number, because the mean of its divisors is an integer number (862968).

Almost surely, 2^10000865 is an apocalyptic number.

It is an amenable number.

10000865 is a deficient number, since it is larger than the sum of its proper divisors (3806623).

10000865 is a wasteful number, since it uses less digits than its factorization.

10000865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 10000865 is about 3162.4144257197. The cubic root of 10000865 is about 215.4496807774.

Adding to 10000865 its reverse (56800001), we get a palindrome (66800866).

The spelling of 10000865 in words is "ten million, eight hundred sixty-five", and thus it is an aban number.