9998934 has 16 divisors (see below), whose sum is σ = 21816000. Its totient is φ = 3029960.

The previous prime is 9998929. The next prime is 9998969. The reversal of 9998934 is 4398999.

It is a super-2 number, since 2×9998934² = 199957362272712, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 75684 + ... + 75815.

It is an arithmetic number, because the mean of its divisors is an integer number (1363500).

Almost surely, 2^9998934 is an apocalyptic number.

9998934 is an abundant number, since it is smaller than the sum of its proper divisors (11817066).

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

9998934 is a wasteful number, since it uses less digits than its factorization.

9998934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151515.

The product of its digits is 629856, while the sum is 51.

The square root of 9998934 is about 3162.1091062770. The cubic root of 9998934 is about 215.4358133066.

The spelling of 9998934 in words is "nine million, nine hundred ninety-eight thousand, nine hundred thirty-four".