198336947 has 2 divisors, whose sum is σ = 198336948. Its totient is φ = 198336946.

The previous prime is 198336917. The next prime is 198336989. The reversal of 198336947 is 749633891.

It is a weak prime.

It is an emirp because it is prime and its reverse (749633891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 198336947 - 2²² = 194142643 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 198336895 and 198336904.

It is not a weakly prime, because it can be changed into another prime (198336907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99168473 + 99168474.

It is an arithmetic number, because the mean of its divisors is an integer number (99168474).

Almost surely, 2^198336947 is an apocalyptic number.

198336947 is a deficient number, since it is larger than the sum of its proper divisors (1).

198336947 is an equidigital number, since it uses as much as digits as its factorization.

198336947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 50.

The square root of 198336947 is about 14083.2150803714. The cubic root of 198336947 is about 583.1781017878.

The spelling of 198336947 in words is "one hundred ninety-eight million, three hundred thirty-six thousand, nine hundred forty-seven".