716315309 has 4 divisors (see below), whose sum is σ = 716369280. Its totient is φ = 716261340.

The previous prime is 716315287. The next prime is 716315311. The reversal of 716315309 is 903513617.

716315309 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 716315309 - 2²⁴ = 699538093 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 (716315339) 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, 8324 + ... + 38754.

It is an arithmetic number, because the mean of its divisors is an integer number (179092320).

Almost surely, 2^716315309 is an apocalyptic number.

It is an amenable number.

716315309 is a deficient number, since it is larger than the sum of its proper divisors (53971).

716315309 is a wasteful number, since it uses less digits than its factorization.

716315309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53970.

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 716315309 is about 26764.0674972994. The cubic root of 716315309 is about 894.7493900038.

The spelling of 716315309 in words is "seven hundred sixteen million, three hundred fifteen thousand, three hundred nine".