196938737 has 2 divisors, whose sum is σ = 196938738. Its totient is φ = 196938736.

The previous prime is 196938697. The next prime is 196938757. The reversal of 196938737 is 737839691.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186022321 + 10916416 = 13639^2 + 3304^2 .

It is a cyclic number.

It is not a de Polignac number, because 196938737 - 2⁸ = 196938481 is a prime.

It is a super-2 number, since 2×196938737² = 77569732262310338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (196938757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98469368 + 98469369.

It is an arithmetic number, because the mean of its divisors is an integer number (98469369).

Almost surely, 2^196938737 is an apocalyptic number.

It is an amenable number.

196938737 is a deficient number, since it is larger than the sum of its proper divisors (1).

196938737 is an equidigital number, since it uses as much as digits as its factorization.

196938737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1714608, while the sum is 53.

The square root of 196938737 is about 14033.4862739093. The cubic root of 196938737 is about 581.8044644515.

The spelling of 196938737 in words is "one hundred ninety-six million, nine hundred thirty-eight thousand, seven hundred thirty-seven".