716656109 has 8 divisors (see below), whose sum is σ = 796680192. Its totient is φ = 640188720.

The previous prime is 716656093. The next prime is 716656153. The reversal of 716656109 is 901656617.

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

It is a cyclic number.

It is not a de Polignac number, because 716656109 - 2⁴ = 716656093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716656159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 888749 + ... + 889554.

It is an arithmetic number, because the mean of its divisors is an integer number (99585024).

Almost surely, 2^716656109 is an apocalyptic number.

It is an amenable number.

716656109 is a deficient number, since it is larger than the sum of its proper divisors (80024083).

716656109 is a wasteful number, since it uses less digits than its factorization.

716656109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778347.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 716656109 is about 26770.4334854705. The cubic root of 716656109 is about 894.8912652563.

The spelling of 716656109 in words is "seven hundred sixteen million, six hundred fifty-six thousand, one hundred nine".