528405 has 8 divisors (see below), whose sum is σ = 845472. Its totient is φ = 281808.

The previous prime is 528403. The next prime is 528413. The reversal of 528405 is 504825.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 528405 - 2¹ = 528403 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 528405.

It is not an unprimeable number, because it can be changed into a prime (528401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17599 + ... + 17628.

It is an arithmetic number, because the mean of its divisors is an integer number (105684).

2⁵²⁸⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

528405 is a deficient number, since it is larger than the sum of its proper divisors (317067).

528405 is a wasteful number, since it uses less digits than its factorization.

528405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35235.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 528405 is about 726.9147130166. The cubic root of 528405 is about 80.8454605628.

The spelling of 528405 in words is "five hundred twenty-eight thousand, four hundred five".