780868 has 12 divisors (see below), whose sum is σ = 1490832. Its totient is φ = 354920.

The previous prime is 780853. The next prime is 780869. The reversal of 780868 is 868087.

780868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (780869) by changing a digit.

780868 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8830 + ... + 8917.

It is an arithmetic number, because the mean of its divisors is an integer number (124236).

2⁷⁸⁰⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

780868 is a deficient number, since it is larger than the sum of its proper divisors (709964).

780868 is a wasteful number, since it uses less digits than its factorization.

780868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17762 (or 17760 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 780868 is about 883.6673582293. The cubic root of 780868 is about 92.0857738184.

The spelling of 780868 in words is "seven hundred eighty thousand, eight hundred sixty-eight".