9684047421 has 12 divisors (see below), whose sum is σ = 14506145472. Its totient is φ = 6456031452.

The previous prime is 9684047413. The next prime is 9684047431. The reversal of 9684047421 is 1247404869.

9684047421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9684047421 - 2³ = 9684047413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9684047431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19925781 + ... + 19926266.

It is an arithmetic number, because the mean of its divisors is an integer number (1208845456).

Almost surely, 2^9684047421 is an apocalyptic number.

It is an amenable number.

9684047421 is a deficient number, since it is larger than the sum of its proper divisors (4822098051).

9684047421 is an equidigital number, since it uses as much as digits as its factorization.

9684047421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39852062 (or 39852050 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 9684047421 is about 98407.5577432953. The cubic root of 9684047421 is about 2131.5014666392.

The spelling of 9684047421 in words is "nine billion, six hundred eighty-four million, forty-seven thousand, four hundred twenty-one".