196044689 has 2 divisors, whose sum is σ = 196044690. Its totient is φ = 196044688.

The previous prime is 196044683. The next prime is 196044701. The reversal of 196044689 is 986440691.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111091600 + 84953089 = 10540^2 + 9217^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196044689 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (196044683) 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, 98022344 + 98022345.

It is an arithmetic number, because the mean of its divisors is an integer number (98022345).

Almost surely, 2^196044689 is an apocalyptic number.

It is an amenable number.

196044689 is a deficient number, since it is larger than the sum of its proper divisors (1).

196044689 is an equidigital number, since it uses as much as digits as its factorization.

196044689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 196044689 is about 14001.5959447486. The cubic root of 196044689 is about 580.9227177610.

The spelling of 196044689 in words is "one hundred ninety-six million, forty-four thousand, six hundred eighty-nine".