196769 has 2 divisors, whose sum is σ = 196770. Its totient is φ = 196768.

The previous prime is 196751. The next prime is 196771. The reversal of 196769 is 967691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150544 + 46225 = 388^2 + 215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196769 is a prime.

It is a super-2 number, since 2×196769² = 77436078722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 196771, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (196709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98384 + 98385.

It is an arithmetic number, because the mean of its divisors is an integer number (98385).

2¹⁹⁶⁷⁶⁹ is an apocalyptic number.

It is an amenable number.

196769 is a deficient number, since it is larger than the sum of its proper divisors (1).

196769 is an equidigital number, since it uses as much as digits as its factorization.

196769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412, while the sum is 38.

The square root of 196769 is about 443.5865191820. The cubic root of 196769 is about 58.1637268414.

The spelling of 196769 in words is "one hundred ninety-six thousand, seven hundred sixty-nine".