196963957 has 2 divisors, whose sum is σ = 196963958. Its totient is φ = 196963956.

The previous prime is 196963901. The next prime is 196963979. The reversal of 196963957 is 759369691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170276401 + 26687556 = 13049^2 + 5166^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196963957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 196963898 and 196963907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196963457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98481978 + 98481979.

It is an arithmetic number, because the mean of its divisors is an integer number (98481979).

Almost surely, 2^196963957 is an apocalyptic number.

It is an amenable number.

196963957 is a deficient number, since it is larger than the sum of its proper divisors (1).

196963957 is an equidigital number, since it uses as much as digits as its factorization.

196963957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2755620, while the sum is 55.

The square root of 196963957 is about 14034.3848101725. The cubic root of 196963957 is about 581.8292987097.

It can be divided in two parts, 19696 and 3957, that added together give a triangular number (23653 = T₂₁₇).

The spelling of 196963957 in words is "one hundred ninety-six million, nine hundred sixty-three thousand, nine hundred fifty-seven".