9638524397 has 2 divisors, whose sum is σ = 9638524398. Its totient is φ = 9638524396.

The previous prime is 9638524373. The next prime is 9638524429. The reversal of 9638524397 is 7934258369.

9638524397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9550371076 + 88153321 = 97726^2 + 9389^2 .

It is a cyclic number.

It is not a de Polignac number, because 9638524397 - 2¹⁰ = 9638523373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9638224397) 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 as a sum of consecutive naturals, namely, 4819262198 + 4819262199.

It is an arithmetic number, because the mean of its divisors is an integer number (4819262199).

Almost surely, 2^9638524397 is an apocalyptic number.

It is an amenable number.

9638524397 is a deficient number, since it is larger than the sum of its proper divisors (1).

9638524397 is an equidigital number, since it uses as much as digits as its factorization.

9638524397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9797760, while the sum is 56.

The square root of 9638524397 is about 98175.9868654245. The cubic root of 9638524397 is about 2128.1562801120.

The spelling of 9638524397 in words is "nine billion, six hundred thirty-eight million, five hundred twenty-four thousand, three hundred ninety-seven".