868610913 has 16 divisors (see below), whose sum is σ = 1173631680. Its totient is φ = 571375616.

The previous prime is 868610909. The next prime is 868610959. The reversal of 868610913 is 319016868.

It is a cyclic number.

It is not a de Polignac number, because 868610913 - 2² = 868610909 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (868610983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77233 + ... + 87761.

It is an arithmetic number, because the mean of its divisors is an integer number (73351980).

Almost surely, 2^868610913 is an apocalyptic number.

It is an amenable number.

868610913 is a deficient number, since it is larger than the sum of its proper divisors (305020767).

868610913 is a wasteful number, since it uses less digits than its factorization.

868610913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10896.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 868610913 is about 29472.2057708615. The cubic root of 868610913 is about 954.1319242776.

The spelling of 868610913 in words is "eight hundred sixty-eight million, six hundred ten thousand, nine hundred thirteen".