9998259 has 8 divisors (see below), whose sum is σ = 13405392. Its totient is φ = 6628320.

The previous prime is 9998249. The next prime is 9998273. The reversal of 9998259 is 9528999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9998259 - 2⁹ = 9997747 is a prime.

It is a super-3 number, since 3×9998259³ (a number of 22 digits) contains 333 as substring.

9998259 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9998239) 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 in 7 ways as a sum of consecutive naturals, for example, 8664 + ... + 9749.

It is an arithmetic number, because the mean of its divisors is an integer number (1675674).

Almost surely, 2^9998259 is an apocalyptic number.

9998259 is a deficient number, since it is larger than the sum of its proper divisors (3407133).

9998259 is a wasteful number, since it uses less digits than its factorization.

9998259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18597.

The product of its digits is 524880, while the sum is 51.

The square root of 9998259 is about 3162.0023719156. The cubic root of 9998259 is about 215.4309653749.

The spelling of 9998259 in words is "nine million, nine hundred ninety-eight thousand, two hundred fifty-nine".