196844969 has 2 divisors, whose sum is σ = 196844970. Its totient is φ = 196844968.

The previous prime is 196844957. The next prime is 196845001. The reversal of 196844969 is 969448691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191462569 + 5382400 = 13837^2 + 2320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196844969 is a prime.

It is a super-2 number, since 2×196844969² = 77495883641221922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (196844909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98422484 + 98422485.

It is an arithmetic number, because the mean of its divisors is an integer number (98422485).

Almost surely, 2^196844969 is an apocalyptic number.

It is an amenable number.

196844969 is a deficient number, since it is larger than the sum of its proper divisors (1).

196844969 is an equidigital number, since it uses as much as digits as its factorization.

196844969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3359232, while the sum is 56.

The square root of 196844969 is about 14030.1450099420. The cubic root of 196844969 is about 581.7121120404.

The spelling of 196844969 in words is "one hundred ninety-six million, eight hundred forty-four thousand, nine hundred sixty-nine".