716780643 has 8 divisors (see below), whose sum is σ = 1006008000. Its totient is φ = 452703528.

The previous prime is 716780641. The next prime is 716780653. The reversal of 716780643 is 346087617.

716780643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 716780643 - 2¹ = 716780641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 716780595 and 716780604.

It is not an unprimeable number, because it can be changed into a prime (716780641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6287493 + ... + 6287606.

It is an arithmetic number, because the mean of its divisors is an integer number (125751000).

Almost surely, 2^716780643 is an apocalyptic number.

716780643 is a deficient number, since it is larger than the sum of its proper divisors (289227357).

716780643 is a wasteful number, since it uses less digits than its factorization.

716780643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12575121.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 716780643 is about 26772.7593460218. The cubic root of 716780643 is about 894.9430976172.

The spelling of 716780643 in words is "seven hundred sixteen million, seven hundred eighty thousand, six hundred forty-three".