196709 has 2 divisors, whose sum is σ = 196710. Its totient is φ = 196708.

The previous prime is 196699. The next prime is 196717. The reversal of 196709 is 907691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103684 + 93025 = 322^2 + 305^2 .

It is an emirp because it is prime and its reverse (907691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 196709 - 2⁸ = 196453 is a prime.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 196709.

It is not a weakly prime, because it can be changed into another prime (196739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98354 + 98355.

It is an arithmetic number, because the mean of its divisors is an integer number (98355).

2¹⁹⁶⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

196709 is a deficient number, since it is larger than the sum of its proper divisors (1).

196709 is an equidigital number, since it uses as much as digits as its factorization.

196709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 196709 is about 443.5188834762. The cubic root of 196709 is about 58.1578143613.

The spelling of 196709 in words is "one hundred ninety-six thousand, seven hundred nine".