196968913 has 2 divisors, whose sum is σ = 196968914. Its totient is φ = 196968912.

The previous prime is 196968791. The next prime is 196968923. The reversal of 196968913 is 319869691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158180929 + 38787984 = 12577^2 + 6228^2 .

It is a cyclic number.

It is not a de Polignac number, because 196968913 - 2²⁵ = 163414481 is a prime.

It is not a weakly prime, because it can be changed into another prime (196968923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98484456 + 98484457.

It is an arithmetic number, because the mean of its divisors is an integer number (98484457).

Almost surely, 2^196968913 is an apocalyptic number.

It is an amenable number.

196968913 is a deficient number, since it is larger than the sum of its proper divisors (1).

196968913 is an equidigital number, since it uses as much as digits as its factorization.

196968913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 629856, while the sum is 52.

The square root of 196968913 is about 14034.5613754046. The cubic root of 196968913 is about 581.8341786580.

The spelling of 196968913 in words is "one hundred ninety-six million, nine hundred sixty-eight thousand, nine hundred thirteen".