9998916 has 24 divisors (see below), whose sum is σ = 23901024. Its totient is φ = 3251520.

The previous prime is 9998903. The next prime is 9998929. The reversal of 9998916 is 6198999.

It is an interprime number because it is at equal distance from previous prime (9998903) and next prime (9998929).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9670 + ... + 10653.

It is an arithmetic number, because the mean of its divisors is an integer number (995876).

Almost surely, 2^9998916 is an apocalyptic number.

It is an amenable number.

9998916 is an abundant number, since it is smaller than the sum of its proper divisors (13902108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9998916 is a wasteful number, since it uses less digits than its factorization.

9998916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20371 (or 20369 counting only the distinct ones).

The product of its digits is 314928, while the sum is 51.

The square root of 9998916 is about 3162.1062600741. The cubic root of 9998916 is about 215.4356840312.

The spelling of 9998916 in words is "nine million, nine hundred ninety-eight thousand, nine hundred sixteen".