998447053 has 2 divisors, whose sum is σ = 998447054. Its totient is φ = 998447052.

The previous prime is 998447041. The next prime is 998447141. The reversal of 998447053 is 350744899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 610435849 + 388011204 = 24707^2 + 19698^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-998447053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 998446988 and 998447006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998447033) 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, 499223526 + 499223527.

It is an arithmetic number, because the mean of its divisors is an integer number (499223527).

Almost surely, 2^998447053 is an apocalyptic number.

It is an amenable number.

998447053 is a deficient number, since it is larger than the sum of its proper divisors (1).

998447053 is an equidigital number, since it uses as much as digits as its factorization.

998447053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 998447053 is about 31598.2128133855. The cubic root of 998447053 is about 999.4820828081.

The spelling of 998447053 in words is "nine hundred ninety-eight million, four hundred forty-seven thousand, fifty-three".