528831 has 12 divisors (see below), whose sum is σ = 776152. Its totient is φ = 346896.

The previous prime is 528823. The next prime is 528833. The reversal of 528831 is 138825.

It is a happy number.

528831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 528831 - 2³ = 528823 is a prime.

It is a super-2 number, since 2×528831² = 559324453122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 528795 and 528804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165 + ... + 1041.

2⁵²⁸⁸³¹ is an apocalyptic number.

528831 is a deficient number, since it is larger than the sum of its proper divisors (247321).

528831 is a wasteful number, since it uses less digits than its factorization.

528831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950 (or 947 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 528831 is about 727.2076732268. The cubic root of 528831 is about 80.8671805914.

The spelling of 528831 in words is "five hundred twenty-eight thousand, eight hundred thirty-one".