196339943 has 2 divisors, whose sum is σ = 196339944. Its totient is φ = 196339942.

The previous prime is 196339883. The next prime is 196339993. The reversal of 196339943 is 349933691.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 196339943 - 2⁶ = 196339879 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196339993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98169971 + 98169972.

It is an arithmetic number, because the mean of its divisors is an integer number (98169972).

Almost surely, 2^196339943 is an apocalyptic number.

196339943 is a deficient number, since it is larger than the sum of its proper divisors (1).

196339943 is an equidigital number, since it uses as much as digits as its factorization.

196339943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 472392, while the sum is 47.

The square root of 196339943 is about 14012.1355617193. The cubic root of 196339943 is about 581.2142052494.

The spelling of 196339943 in words is "one hundred ninety-six million, three hundred thirty-nine thousand, nine hundred forty-three".