9747724328 has 8 divisors (see below), whose sum is σ = 18276983130. Its totient is φ = 4873862160.

The previous prime is 9747724319. The next prime is 9747724361. The reversal of 9747724328 is 8234277479.

It can be written as a sum of positive squares in only one way, i.e., 7299651844 + 2448072484 = 85438^2 + 49478^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 9747724328.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 609232763 + ... + 609232778.

Almost surely, 2^9747724328 is an apocalyptic number.

It is an amenable number.

9747724328 is a deficient number, since it is larger than the sum of its proper divisors (8529258802).

9747724328 is a wasteful number, since it uses less digits than its factorization.

9747724328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218465547 (or 1218465543 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 53.

The square root of 9747724328 is about 98730.5643050823. The cubic root of 9747724328 is about 2136.1631198866.

The spelling of 9747724328 in words is "nine billion, seven hundred forty-seven million, seven hundred twenty-four thousand, three hundred twenty-eight".