198424283 has 4 divisors (see below), whose sum is σ = 198777288. Its totient is φ = 198071280.

The previous prime is 198424249. The next prime is 198424309. The reversal of 198424283 is 382424891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 382424891 = 2789 ⋅137119.

It is a cyclic number.

It is not a de Polignac number, because 198424283 - 2⁸ = 198424027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 198424283.

It is not an unprimeable number, because it can be changed into a prime (198424183) 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 in 3 ways as a sum of consecutive naturals, for example, 175658 + ... + 176783.

It is an arithmetic number, because the mean of its divisors is an integer number (49694322).

Almost surely, 2^198424283 is an apocalyptic number.

198424283 is a deficient number, since it is larger than the sum of its proper divisors (353005).

198424283 is an equidigital number, since it uses as much as digits as its factorization.

198424283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353004.

The product of its digits is 110592, while the sum is 41.

The square root of 198424283 is about 14086.3154515295. The cubic root of 198424283 is about 583.2636884110.

The spelling of 198424283 in words is "one hundred ninety-eight million, four hundred twenty-four thousand, two hundred eighty-three".