528745 has 8 divisors (see below), whose sum is σ = 725184. Its totient is φ = 362544.

The previous prime is 528719. The next prime is 528763. The reversal of 528745 is 547825.

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

It is not a de Polignac number, because 528745 - 2¹⁷ = 397673 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 5 + 2¹⁹ + 7³ + 8 + 4⁶ + 5 .

It is a Duffinian number.

It is a plaindrome in base 13.

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7519 + ... + 7588.

It is an arithmetic number, because the mean of its divisors is an integer number (90648).

2⁵²⁸⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

528745 is a deficient number, since it is larger than the sum of its proper divisors (196439).

528745 is a wasteful number, since it uses less digits than its factorization.

528745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15119.

The product of its digits is 11200, while the sum is 31.

The square root of 528745 is about 727.1485405335. The cubic root of 528745 is about 80.8627967369.

The spelling of 528745 in words is "five hundred twenty-eight thousand, seven hundred forty-five".