780987056 has 10 divisors (see below), whose sum is σ = 1513162452. Its totient is φ = 390493520.

The previous prime is 780987049. The next prime is 780987073. The reversal of 780987056 is 650789087.

It is a happy number.

780987056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 780986995 and 780987013.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24405830 + ... + 24405861.

Almost surely, 2^780987056 is an apocalyptic number.

It is an amenable number.

780987056 is a deficient number, since it is larger than the sum of its proper divisors (732175396).

780987056 is a wasteful number, since it uses less digits than its factorization.

780987056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48811699 (or 48811693 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 50.

The square root of 780987056 is about 27946.1456376367. The cubic root of 780987056 is about 920.9045357080.

The spelling of 780987056 in words is "seven hundred eighty million, nine hundred eighty-seven thousand, fifty-six".