928365521 has 2 divisors, whose sum is σ = 928365522. Its totient is φ = 928365520.

The previous prime is 928365511. The next prime is 928365551. The reversal of 928365521 is 125563829.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 796368400 + 131997121 = 28220^2 + 11489^2 .

It is a cyclic number.

It is not a de Polignac number, because 928365521 - 2¹⁴ = 928349137 is a prime.

It is not a weakly prime, because it can be changed into another prime (928365511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 464182760 + 464182761.

It is an arithmetic number, because the mean of its divisors is an integer number (464182761).

Almost surely, 2^928365521 is an apocalyptic number.

It is an amenable number.

928365521 is a deficient number, since it is larger than the sum of its proper divisors (1).

928365521 is an equidigital number, since it uses as much as digits as its factorization.

928365521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 41.

The square root of 928365521 is about 30469.0912401404. The cubic root of 928365521 is about 975.5278390206.

The spelling of 928365521 in words is "nine hundred twenty-eight million, three hundred sixty-five thousand, five hundred twenty-one".