196705717 has 4 divisors (see below), whose sum is σ = 211836940. Its totient is φ = 181574496.

The previous prime is 196705709. The next prime is 196705721. The reversal of 196705717 is 717507691.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48986001 + 147719716 = 6999^2 + 12154^2 .

It is a cyclic number.

It is not a de Polignac number, because 196705717 - 2³ = 196705709 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 (196705787) 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 3 ways as a sum of consecutive naturals, for example, 7565592 + ... + 7565617.

It is an arithmetic number, because the mean of its divisors is an integer number (52959235).

Almost surely, 2^196705717 is an apocalyptic number.

It is an amenable number.

196705717 is a deficient number, since it is larger than the sum of its proper divisors (15131223).

196705717 is a wasteful number, since it uses less digits than its factorization.

196705717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15131222.

The product of its (nonzero) digits is 92610, while the sum is 43.

The square root of 196705717 is about 14025.1815318020. The cubic root of 196705717 is about 581.5749081546.

The spelling of 196705717 in words is "one hundred ninety-six million, seven hundred five thousand, seven hundred seventeen".