9728611 has 2 divisors, whose sum is σ = 9728612. Its totient is φ = 9728610.

The previous prime is 9728597. The next prime is 9728617. The reversal of 9728611 is 1168279.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9728611 is a prime.

9728611 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (9728617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4864305 + 4864306.

It is an arithmetic number, because the mean of its divisors is an integer number (4864306).

Almost surely, 2^9728611 is an apocalyptic number.

9728611 is a deficient number, since it is larger than the sum of its proper divisors (1).

9728611 is an equidigital number, since it uses as much as digits as its factorization.

9728611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 34.

The square root of 9728611 is about 3119.0721376717. The cubic root of 9728611 is about 213.4766010844.

The spelling of 9728611 in words is "nine million, seven hundred twenty-eight thousand, six hundred eleven".