865830668 has 6 divisors (see below), whose sum is σ = 1515203676. Its totient is φ = 432915332.

The previous prime is 865830629. The next prime is 865830677. The reversal of 865830668 is 866038568.

865830668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108228830 + ... + 108228837.

It is an arithmetic number, because the mean of its divisors is an integer number (252533946).

Almost surely, 2^865830668 is an apocalyptic number.

It is an amenable number.

865830668 is a deficient number, since it is larger than the sum of its proper divisors (649373008).

865830668 is a wasteful number, since it uses less digits than its factorization.

865830668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216457671 (or 216457669 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 50.

The square root of 865830668 is about 29425.0007306712. Note that the first 3 decimals coincide. The cubic root of 865830668 is about 953.1128428198.

The spelling of 865830668 in words is "eight hundred sixty-five million, eight hundred thirty thousand, six hundred sixty-eight".