196975847 has 2 divisors, whose sum is σ = 196975848. Its totient is φ = 196975846.

The previous prime is 196975843. The next prime is 196975853. The reversal of 196975847 is 748579691.

It is a weak prime.

It is an emirp because it is prime and its reverse (748579691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 196975847 - 2² = 196975843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 196975792 and 196975801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196975843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98487923 + 98487924.

It is an arithmetic number, because the mean of its divisors is an integer number (98487924).

Almost surely, 2^196975847 is an apocalyptic number.

196975847 is a deficient number, since it is larger than the sum of its proper divisors (1).

196975847 is an equidigital number, since it uses as much as digits as its factorization.

196975847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3810240, while the sum is 56.

The square root of 196975847 is about 14034.8084062448. The cubic root of 196975847 is about 581.8410061159.

The spelling of 196975847 in words is "one hundred ninety-six million, nine hundred seventy-five thousand, eight hundred forty-seven".