198230447 has 4 divisors (see below), whose sum is σ = 200083176. Its totient is φ = 196377720.

The previous prime is 198230413. The next prime is 198230479. The reversal of 198230447 is 744032891.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 198230447 - 2⁸ = 198230191 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 198230447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198230407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 926204 + ... + 926417.

It is an arithmetic number, because the mean of its divisors is an integer number (50020794).

Almost surely, 2^198230447 is an apocalyptic number.

198230447 is a deficient number, since it is larger than the sum of its proper divisors (1852729).

198230447 is a wasteful number, since it uses less digits than its factorization.

198230447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852728.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 198230447 is about 14079.4334758185. The cubic root of 198230447 is about 583.0737010213.

The spelling of 198230447 in words is "one hundred ninety-eight million, two hundred thirty thousand, four hundred forty-seven".