716688019 has 2 divisors, whose sum is σ = 716688020. Its totient is φ = 716688018.

The previous prime is 716687957. The next prime is 716688029. The reversal of 716688019 is 910886617.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 716688019 - 2¹³ = 716679827 is a prime.

It is a super-3 number, since 3×716688019³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 716688019.

It is not a weakly prime, because it can be changed into another prime (716688029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358344009 + 358344010.

It is an arithmetic number, because the mean of its divisors is an integer number (358344010).

Almost surely, 2^716688019 is an apocalyptic number.

716688019 is a deficient number, since it is larger than the sum of its proper divisors (1).

716688019 is an equidigital number, since it uses as much as digits as its factorization.

716688019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 716688019 is about 26771.0294721738. The cubic root of 716688019 is about 894.9045471062.

The spelling of 716688019 in words is "seven hundred sixteen million, six hundred eighty-eight thousand, nineteen".