9998533 has 12 divisors (see below), whose sum is σ = 10996740. Its totient is φ = 9078272.

The previous prime is 9998479. The next prime is 9998539. The reversal of 9998533 is 3358999.

It can be written as a sum of positive squares in 6 ways, for example, as 956484 + 9042049 = 978^2 + 3007^2 .

It is not a de Polignac number, because 9998533 - 2²¹ = 7901381 is a prime.

It is a Duffinian number.

9998533 is a lucky number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9998539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7785 + ... + 8977.

It is an arithmetic number, because the mean of its divisors is an integer number (916395).

Almost surely, 2^9998533 is an apocalyptic number.

It is an amenable number.

9998533 is a deficient number, since it is larger than the sum of its proper divisors (998207).

9998533 is a wasteful number, since it uses less digits than its factorization.

9998533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256 (or 1239 counting only the distinct ones).

The product of its digits is 262440, while the sum is 46.

The square root of 9998533 is about 3162.0456985945. The cubic root of 9998533 is about 215.4329333023.

The spelling of 9998533 in words is "nine million, nine hundred ninety-eight thousand, five hundred thirty-three".