198899413 has 2 divisors, whose sum is σ = 198899414. Its totient is φ = 198899412.

The previous prime is 198899341. The next prime is 198899417. The reversal of 198899413 is 314998891.

Together with previous prime (198899341) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198049329 + 850084 = 14073^2 + 922^2 .

It is a cyclic number.

It is not a de Polignac number, because 198899413 - 2⁹ = 198898901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198899417) 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 as a sum of consecutive naturals, namely, 99449706 + 99449707.

It is an arithmetic number, because the mean of its divisors is an integer number (99449707).

Almost surely, 2^198899413 is an apocalyptic number.

It is an amenable number.

198899413 is a deficient number, since it is larger than the sum of its proper divisors (1).

198899413 is an equidigital number, since it uses as much as digits as its factorization.

198899413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 52.

The square root of 198899413 is about 14103.1703173435. The cubic root of 198899413 is about 583.7288619466.

The spelling of 198899413 in words is "one hundred ninety-eight million, eight hundred ninety-nine thousand, four hundred thirteen".