998743073 has 2 divisors, whose sum is σ = 998743074. Its totient is φ = 998743072.

The previous prime is 998743061. The next prime is 998743117. The reversal of 998743073 is 370347899.

998743073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 723448609 + 275294464 = 26897^2 + 16592^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-998743073 is a prime.

It is not a weakly prime, because it can be changed into another prime (998773073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499371536 + 499371537.

It is an arithmetic number, because the mean of its divisors is an integer number (499371537).

Almost surely, 2^998743073 is an apocalyptic number.

It is an amenable number.

998743073 is a deficient number, since it is larger than the sum of its proper divisors (1).

998743073 is an equidigital number, since it uses as much as digits as its factorization.

998743073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The square root of 998743073 is about 31602.8965919265. The cubic root of 998743073 is about 999.5808486700.

The spelling of 998743073 in words is "nine hundred ninety-eight million, seven hundred forty-three thousand, seventy-three".