998353 has 2 divisors, whose sum is σ = 998354. Its totient is φ = 998352.

The previous prime is 998329. The next prime is 998377. The reversal of 998353 is 353899.

It is a balanced prime because it is at equal distance from previous prime (998329) and next prime (998377).

It can be written as a sum of positive squares in only one way, i.e., 824464 + 173889 = 908^2 + 417^2 .

It is a cyclic number.

It is not a de Polignac number, because 998353 - 2¹⁷ = 867281 is a prime.

It is not a weakly prime, because it can be changed into another prime (998653) 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, 499176 + 499177.

It is an arithmetic number, because the mean of its divisors is an integer number (499177).

2⁹⁹⁸³⁵³ is an apocalyptic number.

It is an amenable number.

998353 is a deficient number, since it is larger than the sum of its proper divisors (1).

998353 is an equidigital number, since it uses as much as digits as its factorization.

998353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 37.

The square root of 998353 is about 999.1761606444. The cubic root of 998353 is about 99.9450698323.

The spelling of 998353 in words is "nine hundred ninety-eight thousand, three hundred fifty-three".