528089 has 4 divisors (see below), whose sum is σ = 529920. Its totient is φ = 526260.

The previous prime is 528053. The next prime is 528091. The reversal of 528089 is 980825.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-528089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (528289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377 + ... + 1094.

It is an arithmetic number, because the mean of its divisors is an integer number (132480).

2⁵²⁸⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

528089 is a deficient number, since it is larger than the sum of its proper divisors (1831).

528089 is a wasteful number, since it uses less digits than its factorization.

528089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 528089 is about 726.6973235123. The cubic root of 528089 is about 80.8293414498.

The spelling of 528089 in words is "five hundred twenty-eight thousand, eighty-nine".