9928577 has 2 divisors, whose sum is σ = 9928578. Its totient is φ = 9928576.

The previous prime is 9928553. The next prime is 9928591. The reversal of 9928577 is 7758299.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7268416 + 2660161 = 2696^2 + 1631^2 .

It is a cyclic number.

It is not a de Polignac number, because 9928577 - 2¹⁰ = 9927553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9928537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4964288 + 4964289.

It is an arithmetic number, because the mean of its divisors is an integer number (4964289).

Almost surely, 2^9928577 is an apocalyptic number.

It is an amenable number.

9928577 is a deficient number, since it is larger than the sum of its proper divisors (1).

9928577 is an equidigital number, since it uses as much as digits as its factorization.

9928577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 47.

The square root of 9928577 is about 3150.9644555279. The cubic root of 9928577 is about 214.9293223607.

The spelling of 9928577 in words is "nine million, nine hundred twenty-eight thousand, five hundred seventy-seven".