9879936 has 64 divisors (see below), whose sum is σ = 28641600. Its totient is φ = 2992640.

The previous prime is 9879913. The next prime is 9879937. The reversal of 9879936 is 6399789.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×9879936² = 195226270728192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9879937) 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, 3055 + ... + 5393.

It is an arithmetic number, because the mean of its divisors is an integer number (447525).

Almost surely, 2^9879936 is an apocalyptic number.

9879936 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9879936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14320800).

9879936 is an abundant number, since it is smaller than the sum of its proper divisors (18761664).

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

9879936 is a wasteful number, since it uses less digits than its factorization.

9879936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2367 (or 2355 counting only the distinct ones).

The product of its digits is 734832, while the sum is 51.

The square root of 9879936 is about 3143.2365485276. The cubic root of 9879936 is about 214.5777615378.

The spelling of 9879936 in words is "nine million, eight hundred seventy-nine thousand, nine hundred thirty-six".