528345439 has 2 divisors, whose sum is σ = 528345440. Its totient is φ = 528345438.

The previous prime is 528345427. The next prime is 528345463. The reversal of 528345439 is 934543825.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 528345439 - 2¹⁷ = 528214367 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 528345395 and 528345404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (528345409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264172719 + 264172720.

It is an arithmetic number, because the mean of its divisors is an integer number (264172720).

Almost surely, 2^528345439 is an apocalyptic number.

528345439 is a deficient number, since it is larger than the sum of its proper divisors (1).

528345439 is an equidigital number, since it uses as much as digits as its factorization.

528345439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 43.

The square root of 528345439 is about 22985.7660085541. The cubic root of 528345439 is about 808.4242285666.

The spelling of 528345439 in words is "five hundred twenty-eight million, three hundred forty-five thousand, four hundred thirty-nine".