998233163 has 2 divisors, whose sum is σ = 998233164. Its totient is φ = 998233162.

The previous prime is 998233151. The next prime is 998233169. The reversal of 998233163 is 361332899.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 998233163 - 2¹⁶ = 998167627 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (998233169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499116581 + 499116582.

It is an arithmetic number, because the mean of its divisors is an integer number (499116582).

Almost surely, 2^998233163 is an apocalyptic number.

998233163 is a deficient number, since it is larger than the sum of its proper divisors (1).

998233163 is an equidigital number, since it uses as much as digits as its factorization.

998233163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 44.

The square root of 998233163 is about 31594.8281052453. The cubic root of 998233163 is about 999.4107071355.

The spelling of 998233163 in words is "nine hundred ninety-eight million, two hundred thirty-three thousand, one hundred sixty-three".