999998533 has 2 divisors, whose sum is σ = 999998534. Its totient is φ = 999998532.

The previous prime is 999998509. The next prime is 999998537. The reversal of 999998533 is 335899999.

999998533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 613404289 + 386594244 = 24767^2 + 19662^2 .

It is a cyclic number.

It is not a de Polignac number, because 999998533 - 2⁵ = 999998501 is a prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999998537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499999266 + 499999267.

It is an arithmetic number, because the mean of its divisors is an integer number (499999267).

Almost surely, 2^999998533 is an apocalyptic number.

It is an amenable number.

999998533 is a deficient number, since it is larger than the sum of its proper divisors (1).

999998533 is an equidigital number, since it uses as much as digits as its factorization.

999998533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21257640, while the sum is 64.

The square root of 999998533 is about 31622.7534063686. The cubic root of 999998533 is about 999.9995109998. Note that the first 3 decimals are identical.

The spelling of 999998533 in words is "nine hundred ninety-nine million, nine hundred ninety-eight thousand, five hundred thirty-three".