528903 has 16 divisors (see below), whose sum is σ = 825600. Its totient is φ = 333720.

The previous prime is 528883. The next prime is 528911. The reversal of 528903 is 309825.

It is not a de Polignac number, because 528903 - 2⁹ = 528391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3 + ... + 1028.

It is an arithmetic number, because the mean of its divisors is an integer number (51600).

2⁵²⁸⁹⁰³ is an apocalyptic number.

528903 is a deficient number, since it is larger than the sum of its proper divisors (296697).

528903 is a wasteful number, since it uses less digits than its factorization.

528903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059 (or 1053 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 528903 is about 727.2571759701. The cubic root of 528903 is about 80.8708504297.

It can be divided in two parts, 528 and 903, that added together give a triangular number (1431 = T₅₃).

The spelling of 528903 in words is "five hundred twenty-eight thousand, nine hundred three".