9979339798 has 8 divisors (see below), whose sum is σ = 14971033080. Its totient is φ = 4988995440.

The previous prime is 9979339717. The next prime is 9979339837. The reversal of 9979339798 is 8979339799.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 9979339798.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318528 + ... + 348451.

It is an arithmetic number, because the mean of its divisors is an integer number (1871379135).

Almost surely, 2^9979339798 is an apocalyptic number.

9979339798 is a deficient number, since it is larger than the sum of its proper divisors (4991693282).

9979339798 is a wasteful number, since it uses less digits than its factorization.

9979339798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674462.

The product of its digits is 208324872, while the sum is 73.

The square root of 9979339798 is about 99896.6455793186. The cubic root of 9979339798 is about 2152.9499652084.

Subtracting from 9979339798 its reverse (8979339799), we obtain a palindrome (999999999).

The spelling of 9979339798 in words is "nine billion, nine hundred seventy-nine million, three hundred thirty-nine thousand, seven hundred ninety-eight".