998441047 has 2 divisors, whose sum is σ = 998441048. Its totient is φ = 998441046.

The previous prime is 998441039. The next prime is 998441053. The reversal of 998441047 is 740144899.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 998441047 - 2³ = 998441039 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 998440988 and 998441006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998441027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499220523 + 499220524.

It is an arithmetic number, because the mean of its divisors is an integer number (499220524).

Almost surely, 2^998441047 is an apocalyptic number.

998441047 is a deficient number, since it is larger than the sum of its proper divisors (1).

998441047 is an equidigital number, since it uses as much as digits as its factorization.

998441047 is an odious number, because the sum of its binary digits is odd.

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

The square root of 998441047 is about 31598.1177762221. The cubic root of 998441047 is about 999.4800787287.

The spelling of 998441047 in words is "nine hundred ninety-eight million, four hundred forty-one thousand, forty-seven".