9917455417 has 2 divisors, whose sum is σ = 9917455418. Its totient is φ = 9917455416.

The previous prime is 9917455411. The next prime is 9917455421. The reversal of 9917455417 is 7145547199.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9749390121 + 168065296 = 98739^2 + 12964^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9917455417 is a prime.

It is not a weakly prime, because it can be changed into another prime (9917455411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4958727708 + 4958727709.

It is an arithmetic number, because the mean of its divisors is an integer number (4958727709).

Almost surely, 2^9917455417 is an apocalyptic number.

It is an amenable number.

9917455417 is a deficient number, since it is larger than the sum of its proper divisors (1).

9917455417 is an equidigital number, since it uses as much as digits as its factorization.

9917455417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1587600, while the sum is 52.

The square root of 9917455417 is about 99586.4218505716. The cubic root of 9917455417 is about 2148.4904071913.

The spelling of 9917455417 in words is "nine billion, nine hundred seventeen million, four hundred fifty-five thousand, four hundred seventeen".