528072439 has 2 divisors, whose sum is σ = 528072440. Its totient is φ = 528072438.

The previous prime is 528072427. The next prime is 528072463. The reversal of 528072439 is 934270825.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 528072439 - 2¹³ = 528064247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (528072469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264036219 + 264036220.

It is an arithmetic number, because the mean of its divisors is an integer number (264036220).

Almost surely, 2^528072439 is an apocalyptic number.

528072439 is a deficient number, since it is larger than the sum of its proper divisors (1).

528072439 is an equidigital number, since it uses as much as digits as its factorization.

528072439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 528072439 is about 22979.8267835073. The cubic root of 528072439 is about 808.2849649829.

The spelling of 528072439 in words is "five hundred twenty-eight million, seventy-two thousand, four hundred thirty-nine".