9728417 has 2 divisors, whose sum is σ = 9728418. Its totient is φ = 9728416.

The previous prime is 9728401. The next prime is 9728419. The reversal of 9728417 is 7148279.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9728161 + 256 = 3119^2 + 16^2 .

It is a cyclic number.

It is not a de Polignac number, because 9728417 - 2⁴ = 9728401 is a prime.

Together with 9728419, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9728419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4864208 + 4864209.

It is an arithmetic number, because the mean of its divisors is an integer number (4864209).

Almost surely, 2^9728417 is an apocalyptic number.

It is an amenable number.

9728417 is a deficient number, since it is larger than the sum of its proper divisors (1).

9728417 is an equidigital number, since it uses as much as digits as its factorization.

9728417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 38.

The square root of 9728417 is about 3119.0410385245. The cubic root of 9728417 is about 213.4751820830.

The spelling of 9728417 in words is "nine million, seven hundred twenty-eight thousand, four hundred seventeen".