716087909 has 2 divisors, whose sum is σ = 716087910. Its totient is φ = 716087908.

The previous prime is 716087863. The next prime is 716087917. The reversal of 716087909 is 909780617.

716087909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 637411009 + 78676900 = 25247^2 + 8870^2 .

It is a cyclic number.

It is not a de Polignac number, because 716087909 - 2⁸ = 716087653 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (716087959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358043954 + 358043955.

It is an arithmetic number, because the mean of its divisors is an integer number (358043955).

Almost surely, 2^716087909 is an apocalyptic number.

It is an amenable number.

716087909 is a deficient number, since it is larger than the sum of its proper divisors (1).

716087909 is an equidigital number, since it uses as much as digits as its factorization.

716087909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 716087909 is about 26759.8189268911. The cubic root of 716087909 is about 894.6546982095.

The spelling of 716087909 in words is "seven hundred sixteen million, eighty-seven thousand, nine hundred nine".