9613117897 has 2 divisors, whose sum is σ = 9613117898. Its totient is φ = 9613117896.

The previous prime is 9613117853. The next prime is 9613117901. The reversal of 9613117897 is 7987113169.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8528337801 + 1084780096 = 92349^2 + 32936^2 .

It is a cyclic number.

It is not a de Polignac number, because 9613117897 - 2¹⁹ = 9612593609 is a prime.

It is not a weakly prime, because it can be changed into another prime (9613117597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4806558948 + 4806558949.

It is an arithmetic number, because the mean of its divisors is an integer number (4806558949).

Almost surely, 2^9613117897 is an apocalyptic number.

It is an amenable number.

9613117897 is a deficient number, since it is larger than the sum of its proper divisors (1).

9613117897 is an equidigital number, since it uses as much as digits as its factorization.

9613117897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 571536, while the sum is 52.

The square root of 9613117897 is about 98046.5088465673. The cubic root of 9613117897 is about 2126.2847426094.

The spelling of 9613117897 in words is "nine billion, six hundred thirteen million, one hundred seventeen thousand, eight hundred ninety-seven".