9979919404 has 96 divisors (see below), whose sum is σ = 23356928000. Its totient is φ = 3619572480.

The previous prime is 9979919401. The next prime is 9979919449. The reversal of 9979919404 is 4049199799.

It is a happy number.

9979919404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (9979919401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191122 + ... + 237670.

Almost surely, 2^9979919404 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 9979919404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11678464000).

9979919404 is an abundant number, since it is smaller than the sum of its proper divisors (13377008596).

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

9979919404 is a wasteful number, since it uses less digits than its factorization.

9979919404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46623 (or 46621 counting only the distinct ones).

The product of its (nonzero) digits is 6613488, while the sum is 61.

The square root of 9979919404 is about 99899.5465655375. The cubic root of 9979919404 is about 2152.9916459403.

The spelling of 9979919404 in words is "nine billion, nine hundred seventy-nine million, nine hundred nineteen thousand, four hundred four".