9712479447 has 32 divisors (see below), whose sum is σ = 15736273920. Its totient is φ = 5871600000.

The previous prime is 9712479421. The next prime is 9712479473. The reversal of 9712479447 is 7449742179.

It is a happy number.

9712479447 is a `hidden beast` number, since 9 + 7 + 124 + 79 + 447 = 666.

9712479447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9712479421) and next prime (9712479473).

It is not a de Polignac number, because 9712479447 - 2⁸ = 9712479191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9712479393 and 9712479402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9712479247) 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 31 ways as a sum of consecutive naturals, for example, 78322 + ... + 159872.

It is an arithmetic number, because the mean of its divisors is an integer number (491758560).

Almost surely, 2^9712479447 is an apocalyptic number.

9712479447 is a deficient number, since it is larger than the sum of its proper divisors (6023794473).

9712479447 is a wasteful number, since it uses less digits than its factorization.

9712479447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81972 (or 81966 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 54.

The square root of 9712479447 is about 98551.9124471971. The cubic root of 9712479447 is about 2133.5854331770.

The spelling of 9712479447 in words is "nine billion, seven hundred twelve million, four hundred seventy-nine thousand, four hundred forty-seven".