9998913 has 8 divisors (see below), whose sum is σ = 13349248. Its totient is φ = 6657264.

The previous prime is 9998903. The next prime is 9998929. The reversal of 9998913 is 3198999.

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

It is not a de Polignac number, because 9998913 - 2¹⁶ = 9933377 is a prime.

It is a super-2 number, since 2×9998913² = 199956522363138, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9998903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1320 + ... + 4662.

It is an arithmetic number, because the mean of its divisors is an integer number (1668656).

Almost surely, 2^9998913 is an apocalyptic number.

It is an amenable number.

9998913 is a deficient number, since it is larger than the sum of its proper divisors (3350335).

9998913 is a wasteful number, since it uses less digits than its factorization.

9998913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4343.

The product of its digits is 157464, while the sum is 48.

The square root of 9998913 is about 3162.1057857067. The cubic root of 9998913 is about 215.4356624853.

The spelling of 9998913 in words is "nine million, nine hundred ninety-eight thousand, nine hundred thirteen".