528859 has 4 divisors (see below), whose sum is σ = 541800. Its totient is φ = 515920.

The previous prime is 528833. The next prime is 528863. The reversal of 528859 is 958825.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-528859 is a prime.

It is a d-powerful number, because it can be written as 5² + 2¹⁷ + 8² + 8³ + 5⁸ + 9⁴ .

It is a Duffinian number.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (528559) 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, 6409 + ... + 6490.

It is an arithmetic number, because the mean of its divisors is an integer number (135450).

2⁵²⁸⁸⁵⁹ is an apocalyptic number.

528859 is a deficient number, since it is larger than the sum of its proper divisors (12941).

528859 is a wasteful number, since it uses less digits than its factorization.

528859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12940.

The product of its digits is 28800, while the sum is 37.

The square root of 528859 is about 727.2269246941. The cubic root of 528859 is about 80.8686077904.

It can be divided in two parts, 52 and 8859, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 528859 in words is "five hundred twenty-eight thousand, eight hundred fifty-nine".