9939996 has 60 divisors (see below), whose sum is σ = 28357560. Its totient is φ = 3011040.

The previous prime is 9939971. The next prime is 9940001. The reversal of 9939996 is 6999399.

9939996 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2170 + ... + 4958.

It is an arithmetic number, because the mean of its divisors is an integer number (472626).

Almost surely, 2^9939996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9939996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14178780).

9939996 is an abundant number, since it is smaller than the sum of its proper divisors (18417564).

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

9939996 is a wasteful number, since it uses less digits than its factorization.

9939996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816 (or 2805 counting only the distinct ones).

The product of its digits is 1062882, while the sum is 54.

The square root of 9939996 is about 3152.7759197253. The cubic root of 9939996 is about 215.0116885659.

The spelling of 9939996 in words is "nine million, nine hundred thirty-nine thousand, nine hundred ninety-six".