828539 has 4 divisors (see below), whose sum is σ = 831024. Its totient is φ = 826056.

The previous prime is 828523. The next prime is 828547. The reversal of 828539 is 935828.

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

It is a cyclic number.

It is not a de Polignac number, because 828539 - 2⁴ = 828523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 828499 and 828508.

It is not an unprimeable number, because it can be changed into a prime (828239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647 + ... + 1440.

It is an arithmetic number, because the mean of its divisors is an integer number (207756).

2⁸²⁸⁵³⁹ is an apocalyptic number.

828539 is a deficient number, since it is larger than the sum of its proper divisors (2485).

828539 is a wasteful number, since it uses less digits than its factorization.

828539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2484.

The product of its digits is 17280, while the sum is 35.

The square root of 828539 is about 910.2411768317. The cubic root of 828539 is about 93.9227900767.

The spelling of 828539 in words is "eight hundred twenty-eight thousand, five hundred thirty-nine".