7984530388 has 12 divisors (see below), whose sum is σ = 13998018132. Its totient is φ = 3985096640.

The previous prime is 7984530377. The next prime is 7984530391. The reversal of 7984530388 is 8830354897.

It can be written as a sum of positive squares in 2 ways, for example, as 2009549584 + 5974980804 = 44828^2 + 77298^2 .

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 3 ways as a sum of consecutive naturals, for example, 1789633 + ... + 1794088.

It is an arithmetic number, because the mean of its divisors is an integer number (1166501511).

Almost surely, 2^7984530388 is an apocalyptic number.

It is an amenable number.

7984530388 is a deficient number, since it is larger than the sum of its proper divisors (6013487744).

7984530388 is a wasteful number, since it uses less digits than its factorization.

7984530388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3584282 (or 3584280 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 55.

The square root of 7984530388 is about 89356.1994939355. The cubic root of 7984530388 is about 1998.7100338392.

The spelling of 7984530388 in words is "seven billion, nine hundred eighty-four million, five hundred thirty thousand, three hundred eighty-eight".