780650913 has 32 divisors (see below), whose sum is σ = 1235727360. Its totient is φ = 428904000.

The previous prime is 780650881. The next prime is 780650963. The reversal of 780650913 is 319056087.

780650913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 780650913 - 2⁵ = 780650881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (780650963) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150306 + ... + 155412.

It is an arithmetic number, because the mean of its divisors is an integer number (38616480).

Almost surely, 2^780650913 is an apocalyptic number.

It is an amenable number.

780650913 is a deficient number, since it is larger than the sum of its proper divisors (455076447).

780650913 is a wasteful number, since it uses less digits than its factorization.

780650913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5397.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 780650913 is about 27940.1308694143. The cubic root of 780650913 is about 920.7723952185.

The spelling of 780650913 in words is "seven hundred eighty million, six hundred fifty thousand, nine hundred thirteen".