196598851 has 2 divisors, whose sum is σ = 196598852. Its totient is φ = 196598850.

The previous prime is 196598849. The next prime is 196598861. The reversal of 196598851 is 158895691.

It is a weak prime.

It is an emirp because it is prime and its reverse (158895691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 196598851 - 2¹ = 196598849 is a prime.

It is a super-2 number, since 2×196598851² = 77302216429040402, which contains 22 as substring.

Together with 196598849, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (196598821) 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, 98299425 + 98299426.

It is an arithmetic number, because the mean of its divisors is an integer number (98299426).

Almost surely, 2^196598851 is an apocalyptic number.

196598851 is a deficient number, since it is larger than the sum of its proper divisors (1).

196598851 is an equidigital number, since it uses as much as digits as its factorization.

196598851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 777600, while the sum is 52.

The square root of 196598851 is about 14021.3712239567. The cubic root of 196598851 is about 581.4695700154.

The spelling of 196598851 in words is "one hundred ninety-six million, five hundred ninety-eight thousand, eight hundred fifty-one".