198413 has 2 divisors, whose sum is σ = 198414. Its totient is φ = 198412.

The previous prime is 198409. The next prime is 198427. The reversal of 198413 is 314891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157609 + 40804 = 397^2 + 202^2 .

It is a cyclic number.

It is not a de Polignac number, because 198413 - 2² = 198409 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99206 + 99207.

It is an arithmetic number, because the mean of its divisors is an integer number (99207).

2¹⁹⁸⁴¹³ is an apocalyptic number.

It is an amenable number.

198413 is a deficient number, since it is larger than the sum of its proper divisors (1).

198413 is an equidigital number, since it uses as much as digits as its factorization.

198413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 26.

The square root of 198413 is about 445.4357417182. The cubic root of 198413 is about 58.3252632827.

The spelling of 198413 in words is "one hundred ninety-eight thousand, four hundred thirteen".