196929709 has 2 divisors, whose sum is σ = 196929710. Its totient is φ = 196929708.

The previous prime is 196929641. The next prime is 196929757. The reversal of 196929709 is 907929691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131675625 + 65254084 = 11475^2 + 8078^2 .

It is a cyclic number.

It is not a de Polignac number, because 196929709 - 2²¹ = 194832557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196929409) 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, 98464854 + 98464855.

It is an arithmetic number, because the mean of its divisors is an integer number (98464855).

Almost surely, 2^196929709 is an apocalyptic number.

It is an amenable number.

196929709 is a deficient number, since it is larger than the sum of its proper divisors (1).

196929709 is an equidigital number, since it uses as much as digits as its factorization.

196929709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 551124, while the sum is 52.

The square root of 196929709 is about 14033.1646110206. The cubic root of 196929709 is about 581.7955740202.

The spelling of 196929709 in words is "one hundred ninety-six million, nine hundred twenty-nine thousand, seven hundred nine".