196944287 has 2 divisors, whose sum is σ = 196944288. Its totient is φ = 196944286.

The previous prime is 196944281. The next prime is 196944299. The reversal of 196944287 is 782449691.

It is a weak prime.

It is an emirp because it is prime and its reverse (782449691) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196944287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196944281) 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, 98472143 + 98472144.

It is an arithmetic number, because the mean of its divisors is an integer number (98472144).

Almost surely, 2^196944287 is an apocalyptic number.

196944287 is a deficient number, since it is larger than the sum of its proper divisors (1).

196944287 is an equidigital number, since it uses as much as digits as its factorization.

196944287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 50.

The square root of 196944287 is about 14033.6840138290. The cubic root of 196944287 is about 581.8099297458.

The spelling of 196944287 in words is "one hundred ninety-six million, nine hundred forty-four thousand, two hundred eighty-seven".