196309793 has 2 divisors, whose sum is σ = 196309794. Its totient is φ = 196309792.

The previous prime is 196309769. The next prime is 196309801. The reversal of 196309793 is 397903691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181387024 + 14922769 = 13468^2 + 3863^2 .

It is a cyclic number.

It is not a de Polignac number, because 196309793 - 2⁸ = 196309537 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (196309733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98154896 + 98154897.

It is an arithmetic number, because the mean of its divisors is an integer number (98154897).

Almost surely, 2^196309793 is an apocalyptic number.

It is an amenable number.

196309793 is a deficient number, since it is larger than the sum of its proper divisors (1).

196309793 is an equidigital number, since it uses as much as digits as its factorization.

196309793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 275562, while the sum is 47.

The square root of 196309793 is about 14011.0596672771. The cubic root of 196309793 is about 581.1844532708.

The spelling of 196309793 in words is "one hundred ninety-six million, three hundred nine thousand, seven hundred ninety-three".