716321005 has 4 divisors (see below), whose sum is σ = 859585212. Its totient is φ = 573056800.

The previous prime is 716321003. The next prime is 716321017. The reversal of 716321005 is 500123617.

716321005 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 326416489 + 389904516 = 18067^2 + 19746^2 .

It is not a de Polignac number, because 716321005 - 2¹ = 716321003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716321003) 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, 71632096 + ... + 71632105.

It is an arithmetic number, because the mean of its divisors is an integer number (214896303).

Almost surely, 2^716321005 is an apocalyptic number.

It is an amenable number.

716321005 is a deficient number, since it is larger than the sum of its proper divisors (143264207).

716321005 is a wasteful number, since it uses less digits than its factorization.

716321005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143264206.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 716321005 is about 26764.1739084172. The cubic root of 716321005 is about 894.7517616219.

The spelling of 716321005 in words is "seven hundred sixteen million, three hundred twenty-one thousand, five".