528399 has 6 divisors (see below), whose sum is σ = 763256. Its totient is φ = 352260.

The previous prime is 528391. The next prime is 528401. The reversal of 528399 is 993825.

It is not a de Polignac number, because 528399 - 2³ = 528391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528391) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29347 + ... + 29364.

2⁵²⁸³⁹⁹ is an apocalyptic number.

528399 is a deficient number, since it is larger than the sum of its proper divisors (234857).

528399 is a wasteful number, since it uses less digits than its factorization.

528399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58717 (or 58714 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 528399 is about 726.9105859733. The cubic root of 528399 is about 80.8451545636.

The spelling of 528399 in words is "five hundred twenty-eight thousand, three hundred ninety-nine".