9988303423 has 12 divisors (see below), whose sum is σ = 11635901112.
Its totient is φ = 8548984080.
The previous prime is 9988303397. The next prime is 9988303537. The reversal of 9988303423 is 3243038899.
It is not a de Polignac number, because 9988303423 - 29 = 9988302911 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (49).
It is the 99942-nd Hogben number.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (9988303223) by changing a digit.
It is a nontrivial repunit in base 99941.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113640 + ... + 181357.
It is an arithmetic number, because the mean of its divisors is an integer number (969658426).
Almost surely, 29988303423 is an apocalyptic number.
9988303423 is a deficient number, since it is larger than the sum of its proper divisors (1647597689).
9988303423 is a wasteful number, since it uses less digits than its factorization.
9988303423 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 295702 (or 295695 counting only the distinct ones).
The product of its (nonzero) digits is 1119744, while the sum is 49.
The square root of 9988303423 is about 99941.5000037522.
The cubic root of 9988303423 is about 2153.5943786130.
The spelling of 9988303423 in words is "nine billion, nine hundred eighty-eight million, three hundred three thousand, four hundred twenty-three".