9997470647 has 2 divisors, whose sum is σ = 9997470648. Its totient is φ = 9997470646.

The previous prime is 9997470629. The next prime is 9997470671. The reversal of 9997470647 is 7460747999.

9997470647 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (7460747999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9997470647 - 2¹⁶ = 9997405111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9997470647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9997470617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4998735323 + 4998735324.

It is an arithmetic number, because the mean of its divisors is an integer number (4998735324).

Almost surely, 2^9997470647 is an apocalyptic number.

9997470647 is a deficient number, since it is larger than the sum of its proper divisors (1).

9997470647 is an equidigital number, since it uses as much as digits as its factorization.

9997470647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24004512, while the sum is 62.

The square root of 9997470647 is about 99987.3524351955. The cubic root of 9997470647 is about 2154.2530305201.

The spelling of 9997470647 in words is "nine billion, nine hundred ninety-seven million, four hundred seventy thousand, six hundred forty-seven".