9487635697 has 2 divisors, whose sum is σ = 9487635698. Its totient is φ = 9487635696.

The previous prime is 9487635691. The next prime is 9487635727. The reversal of 9487635697 is 7965367849.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7199352801 + 2288282896 = 84849^2 + 47836^2 .

It is an emirp because it is prime and its reverse (7965367849) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9487635697 is a prime.

It is a super-2 number, since 2×9487635697² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9487635691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4743817848 + 4743817849.

It is an arithmetic number, because the mean of its divisors is an integer number (4743817849).

Almost surely, 2^9487635697 is an apocalyptic number.

It is an amenable number.

9487635697 is a deficient number, since it is larger than the sum of its proper divisors (1).

9487635697 is an equidigital number, since it uses as much as digits as its factorization.

9487635697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68584320, while the sum is 64.

The square root of 9487635697 is about 97404.4952607425. The cubic root of 9487635697 is about 2116.9925685494.

The spelling of 9487635697 in words is "nine billion, four hundred eighty-seven million, six hundred thirty-five thousand, six hundred ninety-seven".