865648968 has 32 divisors (see below), whose sum is σ = 2278024800. Its totient is φ = 273362688.

The previous prime is 865648957. The next prime is 865649017. The reversal of 865648968 is 869846568.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 948721 + ... + 949632.

It is an arithmetic number, because the mean of its divisors is an integer number (71188275).

Almost surely, 2^865648968 is an apocalyptic number.

It is an amenable number.

865648968 is an abundant number, since it is smaller than the sum of its proper divisors (1412375832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

865648968 is a wasteful number, since it uses less digits than its factorization.

865648968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898381 (or 1898377 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 60.

The square root of 865648968 is about 29421.9130581273. The cubic root of 865648968 is about 953.0461659180.

The spelling of 865648968 in words is "eight hundred sixty-five million, six hundred forty-eight thousand, nine hundred sixty-eight".