9994784724 has 30 divisors (see below), whose sum is σ = 26128342394. Its totient is φ = 3331594800.

The previous prime is 9994784689. The next prime is 9994784743. The reversal of 9994784724 is 4274874999.

9994784724 is a `hidden beast` number, since 9 + 9 + 94 + 78 + 472 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5377582224 + 4617202500 = 73332^2 + 67950^2 .

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 15423727 + ... + 15424374.

Almost surely, 2^9994784724 is an apocalyptic number.

It is an amenable number.

9994784724 is an abundant number, since it is smaller than the sum of its proper divisors (16133557670).

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

9994784724 is a wasteful number, since it uses less digits than its factorization.

9994784724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30848117 (or 30848106 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 63.

The square root of 9994784724 is about 99973.9202192252. The cubic root of 9994784724 is about 2154.0600925189.

The spelling of 9994784724 in words is "nine billion, nine hundred ninety-four million, seven hundred eighty-four thousand, seven hundred twenty-four".