196679699 has 2 divisors, whose sum is σ = 196679700. Its totient is φ = 196679698.

The previous prime is 196679671. The next prime is 196679701. The reversal of 196679699 is 996976691.

It is a strong prime.

It is an emirp because it is prime and its reverse (996976691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 196679699 - 2¹² = 196675603 is a prime.

Together with 196679701, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (196679629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98339849 + 98339850.

It is an arithmetic number, because the mean of its divisors is an integer number (98339850).

Almost surely, 2^196679699 is an apocalyptic number.

196679699 is a deficient number, since it is larger than the sum of its proper divisors (1).

196679699 is an equidigital number, since it uses as much as digits as its factorization.

196679699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9920232, while the sum is 62.

The square root of 196679699 is about 14024.2539552020. The cubic root of 196679699 is about 581.5492656476.

The spelling of 196679699 in words is "one hundred ninety-six million, six hundred seventy-nine thousand, six hundred ninety-nine".