196670291 has 2 divisors, whose sum is σ = 196670292. Its totient is φ = 196670290.

The previous prime is 196670237. The next prime is 196670321. The reversal of 196670291 is 192076691.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 196670291 - 2¹⁴ = 196653907 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (196670191) 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, 98335145 + 98335146.

It is an arithmetic number, because the mean of its divisors is an integer number (98335146).

Almost surely, 2^196670291 is an apocalyptic number.

196670291 is a deficient number, since it is larger than the sum of its proper divisors (1).

196670291 is an equidigital number, since it uses as much as digits as its factorization.

196670291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 196670291 is about 14023.9185322791. The cubic root of 196670291 is about 581.5399928676.

The spelling of 196670291 in words is "one hundred ninety-six million, six hundred seventy thousand, two hundred ninety-one".