865797968 has 20 divisors (see below), whose sum is σ = 1917124320. Its totient is φ = 371056224.

The previous prime is 865797967. The next prime is 865797971. The reversal of 865797968 is 869797568.

It is a super-2 number, since 2×865797968² = 1499212242785858048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (865797967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3865058 + ... + 3865281.

It is an arithmetic number, because the mean of its divisors is an integer number (95856216).

Almost surely, 2^865797968 is an apocalyptic number.

It is an amenable number.

865797968 is an abundant number, since it is smaller than the sum of its proper divisors (1051326352).

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

865797968 is a wasteful number, since it uses less digits than its factorization.

865797968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7730354 (or 7730348 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 65.

The square root of 865797968 is about 29424.4450754810. The cubic root of 865797968 is about 953.1008438676.

The spelling of 865797968 in words is "eight hundred sixty-five million, seven hundred ninety-seven thousand, nine hundred sixty-eight".