998441039 has 2 divisors, whose sum is σ = 998441040. Its totient is φ = 998441038.

The previous prime is 998441033. The next prime is 998441047. The reversal of 998441039 is 930144899.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-998441039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 998440984 and 998441002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998441033) 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, 499220519 + 499220520.

It is an arithmetic number, because the mean of its divisors is an integer number (499220520).

Almost surely, 2^998441039 is an apocalyptic number.

998441039 is a deficient number, since it is larger than the sum of its proper divisors (1).

998441039 is an equidigital number, since it uses as much as digits as its factorization.

998441039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 998441039 is about 31598.1176496322. The cubic root of 998441039 is about 999.4800760593.

The spelling of 998441039 in words is "nine hundred ninety-eight million, four hundred forty-one thousand, thirty-nine".