9947384736 has 48 divisors (see below), whose sum is σ = 26130593664. Its totient is φ = 3313419264.

The previous prime is 9947384717. The next prime is 9947384737. The reversal of 9947384736 is 6374837499.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 9947384736.

It is not an unprimeable number, because it can be changed into a prime (9947384737) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 100200 + ... + 173016.

It is an arithmetic number, because the mean of its divisors is an integer number (544387368).

Almost surely, 2^9947384736 is an apocalyptic number.

9947384736 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

9947384736 is an abundant number, since it is smaller than the sum of its proper divisors (16183208928).

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

9947384736 is a wasteful number, since it uses less digits than its factorization.

9947384736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74253 (or 74245 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 60.

The square root of 9947384736 is about 99736.5767208801. The cubic root of 9947384736 is about 2150.6495053000.

The spelling of 9947384736 in words is "nine billion, nine hundred forty-seven million, three hundred eighty-four thousand, seven hundred thirty-six".