9639297984 has 56 divisors (see below), whose sum is σ = 25516035328. Its totient is φ = 3211580160.

The previous prime is 9639297977. The next prime is 9639298001. The reversal of 9639297984 is 4897929369.

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 7 ways as a sum of consecutive naturals, for example, 439929 + ... + 461319.

It is an arithmetic number, because the mean of its divisors is an integer number (455643488).

Almost surely, 2^9639297984 is an apocalyptic number.

It is an amenable number.

9639297984 is an abundant number, since it is smaller than the sum of its proper divisors (15876737344).

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

9639297984 is a wasteful number, since it uses less digits than its factorization.

9639297984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23753 (or 23743 counting only the distinct ones).

The product of its digits is 52907904, while the sum is 66.

The square root of 9639297984 is about 98179.9265837982. The cubic root of 9639297984 is about 2128.2132137920.

It can be divided in two parts, 96392 and 97984, that added together give a triangular number (194376 = T₆₂₃).

The spelling of 9639297984 in words is "nine billion, six hundred thirty-nine million, two hundred ninety-seven thousand, nine hundred eighty-four".