198584413 has 2 divisors, whose sum is σ = 198584414. Its totient is φ = 198584412.

The previous prime is 198584381. The next prime is 198584467. The reversal of 198584413 is 314485891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192737689 + 5846724 = 13883^2 + 2418^2 .

It is a cyclic number.

It is not a de Polignac number, because 198584413 - 2⁵ = 198584381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 198584413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198587413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99292206 + 99292207.

It is an arithmetic number, because the mean of its divisors is an integer number (99292207).

Almost surely, 2^198584413 is an apocalyptic number.

It is an amenable number.

198584413 is a deficient number, since it is larger than the sum of its proper divisors (1).

198584413 is an equidigital number, since it uses as much as digits as its factorization.

198584413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 43.

The square root of 198584413 is about 14091.9981904626. The cubic root of 198584413 is about 583.4205457269.

The spelling of 198584413 in words is "one hundred ninety-eight million, five hundred eighty-four thousand, four hundred thirteen".