196655807 has 2 divisors, whose sum is σ = 196655808. Its totient is φ = 196655806.

The previous prime is 196655749. The next prime is 196655827. The reversal of 196655807 is 708556691.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 196655807 - 2⁸ = 196655551 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196655827) 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, 98327903 + 98327904.

It is an arithmetic number, because the mean of its divisors is an integer number (98327904).

Almost surely, 2^196655807 is an apocalyptic number.

196655807 is a deficient number, since it is larger than the sum of its proper divisors (1).

196655807 is an equidigital number, since it uses as much as digits as its factorization.

196655807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 47.

The square root of 196655807 is about 14023.4021193147. The cubic root of 196655807 is about 581.5257164663.

The spelling of 196655807 in words is "one hundred ninety-six million, six hundred fifty-five thousand, eight hundred seven".