198516847 has 2 divisors, whose sum is σ = 198516848. Its totient is φ = 198516846.

The previous prime is 198516833. The next prime is 198516917. The reversal of 198516847 is 748615891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 198516847 - 2⁷ = 198516719 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 198516847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198516817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99258423 + 99258424.

It is an arithmetic number, because the mean of its divisors is an integer number (99258424).

Almost surely, 2^198516847 is an apocalyptic number.

198516847 is a deficient number, since it is larger than the sum of its proper divisors (1).

198516847 is an equidigital number, since it uses as much as digits as its factorization.

198516847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 49.

The square root of 198516847 is about 14089.6006685782. The cubic root of 198516847 is about 583.3543709057.

The spelling of 198516847 in words is "one hundred ninety-eight million, five hundred sixteen thousand, eight hundred forty-seven".