828535 has 4 divisors (see below), whose sum is σ = 994248. Its totient is φ = 662824.

The previous prime is 828523. The next prime is 828547. The reversal of 828535 is 535828.

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

It is an interprime number because it is at equal distance from previous prime (828523) and next prime (828547).

It is a cyclic number.

It is not a de Polignac number, because 828535 - 2⁷ = 828407 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 828497 and 828506.

It is a congruent number.

It is an unprimeable number.

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, 82849 + ... + 82858.

It is an arithmetic number, because the mean of its divisors is an integer number (248562).

2⁸²⁸⁵³⁵ is an apocalyptic number.

828535 is a deficient number, since it is larger than the sum of its proper divisors (165713).

828535 is a wasteful number, since it uses less digits than its factorization.

828535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165712.

The product of its digits is 9600, while the sum is 31.

The square root of 828535 is about 910.2389796092. The cubic root of 828535 is about 93.9226389304.

The spelling of 828535 in words is "eight hundred twenty-eight thousand, five hundred thirty-five".