198463 has 2 divisors, whose sum is σ = 198464. Its totient is φ = 198462.

The previous prime is 198461. The next prime is 198469. The reversal of 198463 is 364891.

It is a weak prime.

It is an emirp because it is prime and its reverse (364891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 198463 - 2¹ = 198461 is a prime.

Together with 198461, it forms a pair of twin primes.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99231 + 99232.

It is an arithmetic number, because the mean of its divisors is an integer number (99232).

2¹⁹⁸⁴⁶³ is an apocalyptic number.

198463 is a deficient number, since it is larger than the sum of its proper divisors (1).

198463 is an equidigital number, since it uses as much as digits as its factorization.

198463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 31.

The square root of 198463 is about 445.4918630009. The cubic root of 198463 is about 58.3301621859.

The spelling of 198463 in words is "one hundred ninety-eight thousand, four hundred sixty-three".