998795159 has 2 divisors, whose sum is σ = 998795160. Its totient is φ = 998795158.

The previous prime is 998795153. The next prime is 998795299. The reversal of 998795159 is 951597899.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 998795159 - 2⁴ = 998795143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998795153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499397579 + 499397580.

It is an arithmetic number, because the mean of its divisors is an integer number (499397580).

Almost surely, 2^998795159 is an apocalyptic number.

998795159 is a deficient number, since it is larger than the sum of its proper divisors (1).

998795159 is an equidigital number, since it uses as much as digits as its factorization.

998795159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9185400, while the sum is 62.

The square root of 998795159 is about 31603.7206512145. The cubic root of 998795159 is about 999.5982249317.

The spelling of 998795159 in words is "nine hundred ninety-eight million, seven hundred ninety-five thousand, one hundred fifty-nine".