528987 has 4 divisors (see below), whose sum is σ = 705320. Its totient is φ = 352656.

The previous prime is 528973. The next prime is 528991. The reversal of 528987 is 789825.

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

It is not a de Polignac number, because 528987 - 2⁴ = 528971 is a prime.

It is a d-powerful number, because it can be written as 5⁸ + 2¹⁷ + 9³ + 8² + 8⁴ + 7⁴ .

It is a D-number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 528987.

It is not an unprimeable number, because it can be changed into a prime (528947) 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, 88162 + ... + 88167.

It is an arithmetic number, because the mean of its divisors is an integer number (176330).

2⁵²⁸⁹⁸⁷ is an apocalyptic number.

528987 is a deficient number, since it is larger than the sum of its proper divisors (176333).

528987 is a wasteful number, since it uses less digits than its factorization.

528987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176332.

The product of its digits is 40320, while the sum is 39.

The square root of 528987 is about 727.3149249122. The cubic root of 528987 is about 80.8751314868.

The spelling of 528987 in words is "five hundred twenty-eight thousand, nine hundred eighty-seven".