198836227 has 2 divisors, whose sum is σ = 198836228. Its totient is φ = 198836226.

The previous prime is 198836213. The next prime is 198836249. The reversal of 198836227 is 722638891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 198836227 - 2¹⁵ = 198803459 is a prime.

It is not a weakly prime, because it can be changed into another prime (198836207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99418113 + 99418114.

It is an arithmetic number, because the mean of its divisors is an integer number (99418114).

Almost surely, 2^198836227 is an apocalyptic number.

198836227 is a deficient number, since it is larger than the sum of its proper divisors (1).

198836227 is an equidigital number, since it uses as much as digits as its factorization.

198836227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 46.

The square root of 198836227 is about 14100.9300047905. The cubic root of 198836227 is about 583.6670427626.

The spelling of 198836227 in words is "one hundred ninety-eight million, eight hundred thirty-six thousand, two hundred twenty-seven".