199707713 has 2 divisors, whose sum is σ = 199707714. Its totient is φ = 199707712.

The previous prime is 199707709. The next prime is 199707731. The reversal of 199707713 is 317707991.

It is a happy number.

199707713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (199707731) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154455184 + 45252529 = 12428^2 + 6727^2 .

It is a cyclic number.

It is not a de Polignac number, because 199707713 - 2² = 199707709 is a prime.

It is not a weakly prime, because it can be changed into another prime (199707733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99853856 + 99853857.

It is an arithmetic number, because the mean of its divisors is an integer number (99853857).

Almost surely, 2^199707713 is an apocalyptic number.

It is an amenable number.

199707713 is a deficient number, since it is larger than the sum of its proper divisors (1).

199707713 is an equidigital number, since it uses as much as digits as its factorization.

199707713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 83349, while the sum is 44.

The square root of 199707713 is about 14131.7979393989. The cubic root of 199707713 is about 584.5185246257.

The spelling of 199707713 in words is "one hundred ninety-nine million, seven hundred seven thousand, seven hundred thirteen".