9979424 has 96 divisors (see below), whose sum is σ = 25401600. Its totient is φ = 3750912.

The previous prime is 9979399. The next prime is 9979433. The reversal of 9979424 is 4249799.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66902 + ... + 67050.

It is an arithmetic number, because the mean of its divisors is an integer number (264600).

Almost surely, 2^9979424 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 9979424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12700800).

9979424 is an abundant number, since it is smaller than the sum of its proper divisors (15422176).

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

9979424 is a wasteful number, since it uses less digits than its factorization.

9979424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202 (or 194 counting only the distinct ones).

The product of its digits is 163296, while the sum is 44.

The square root of 9979424 is about 3159.0226336638. The cubic root of 9979424 is about 215.2956020458.

The spelling of 9979424 in words is "nine million, nine hundred seventy-nine thousand, four hundred twenty-four".