780650916 has 36 divisors (see below), whose sum is σ = 1851975216. Its totient is φ = 255936480.

The previous prime is 780650881. The next prime is 780650963. The reversal of 780650916 is 619056087.

780650916 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 in 11 ways as a sum of consecutive naturals, for example, 35911 + ... + 53393.

It is an arithmetic number, because the mean of its divisors is an integer number (51443756).

Almost surely, 2^780650916 is an apocalyptic number.

It is an amenable number.

780650916 is an abundant number, since it is smaller than the sum of its proper divisors (1071324300).

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

780650916 is a wasteful number, since it uses less digits than its factorization.

780650916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17612 (or 17549 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 780650916 is about 27940.1309231006. The cubic root of 780650916 is about 920.7723963980.

The spelling of 780650916 in words is "seven hundred eighty million, six hundred fifty thousand, nine hundred sixteen".