528065389 has 2 divisors, whose sum is σ = 528065390. Its totient is φ = 528065388.

The previous prime is 528065383. The next prime is 528065449. The reversal of 528065389 is 983560825.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 429857289 + 98208100 = 20733^2 + 9910^2 .

It is a cyclic number.

It is not a de Polignac number, because 528065389 - 2⁵ = 528065357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (528065383) 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, 264032694 + 264032695.

It is an arithmetic number, because the mean of its divisors is an integer number (264032695).

Almost surely, 2^528065389 is an apocalyptic number.

It is an amenable number.

528065389 is a deficient number, since it is larger than the sum of its proper divisors (1).

528065389 is an equidigital number, since it uses as much as digits as its factorization.

528065389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 46.

The square root of 528065389 is about 22979.6733875832. The cubic root of 528065389 is about 808.2813679800.

The spelling of 528065389 in words is "five hundred twenty-eight million, sixty-five thousand, three hundred eighty-nine".