765868 has 6 divisors (see below), whose sum is σ = 1340276. Its totient is φ = 382932.

The previous prime is 765859. The next prime is 765881. The reversal of 765868 is 868567.

It is a self number, because there is not a number n which added to its sum of digits gives 765868.

It is an unprimeable number.

765868 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95730 + ... + 95737.

2⁷⁶⁵⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

765868 is a deficient number, since it is larger than the sum of its proper divisors (574408).

765868 is a wasteful number, since it uses less digits than its factorization.

765868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191471 (or 191469 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 765868 is about 875.1388461267. The cubic root of 765868 is about 91.4923202170.

The spelling of 765868 in words is "seven hundred sixty-five thousand, eight hundred sixty-eight".