716428673 has 4 divisors (see below), whose sum is σ = 741133140. Its totient is φ = 691724208.

The previous prime is 716428667. The next prime is 716428721. The reversal of 716428673 is 376824617.

716428673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 437939329 + 278489344 = 20927^2 + 16688^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-716428673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (710428673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12352190 + ... + 12352247.

It is an arithmetic number, because the mean of its divisors is an integer number (185283285).

Almost surely, 2^716428673 is an apocalyptic number.

It is an amenable number.

716428673 is a deficient number, since it is larger than the sum of its proper divisors (24704467).

716428673 is a wasteful number, since it uses less digits than its factorization.

716428673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24704466.

The product of its digits is 338688, while the sum is 44.

The square root of 716428673 is about 26766.1852530390. The cubic root of 716428673 is about 894.7965885015.

The spelling of 716428673 in words is "seven hundred sixteen million, four hundred twenty-eight thousand, six hundred seventy-three".