9998613 has 16 divisors (see below), whose sum is σ = 14861760. Its totient is φ = 6643728.

The previous prime is 9998603. The next prime is 9998623. The reversal of 9998613 is 3168999.

It is an interprime number because it is at equal distance from previous prime (9998603) and next prime (9998623).

It is not a de Polignac number, because 9998613 - 2⁵ = 9998581 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

9998613 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9998603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14431 + ... + 15107.

It is an arithmetic number, because the mean of its divisors is an integer number (928860).

Almost surely, 2^9998613 is an apocalyptic number.

It is an amenable number.

9998613 is a deficient number, since it is larger than the sum of its proper divisors (4863147).

9998613 is a wasteful number, since it uses less digits than its factorization.

9998613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233 (or 1227 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 9998613 is about 3162.0583486078. The cubic root of 9998613 is about 215.4335078729.

It can be divided in two parts, 99986 and 13, that added together give a palindrome (99999).

The spelling of 9998613 in words is "nine million, nine hundred ninety-eight thousand, six hundred thirteen".