196338691 has 2 divisors, whose sum is σ = 196338692. Its totient is φ = 196338690.

The previous prime is 196338689. The next prime is 196338697. The reversal of 196338691 is 196833691.

196338691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 196338691 - 2¹ = 196338689 is a prime.

Together with 196338689, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (196338697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98169345 + 98169346.

It is an arithmetic number, because the mean of its divisors is an integer number (98169346).

Almost surely, 2^196338691 is an apocalyptic number.

196338691 is a deficient number, since it is larger than the sum of its proper divisors (1).

196338691 is an equidigital number, since it uses as much as digits as its factorization.

196338691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 46.

The square root of 196338691 is about 14012.0908860883. The cubic root of 196338691 is about 581.2129698381.

The spelling of 196338691 in words is "one hundred ninety-six million, three hundred thirty-eight thousand, six hundred ninety-one".