828365 has 4 divisors (see below), whose sum is σ = 994044. Its totient is φ = 662688.

The previous prime is 828361. The next prime is 828371. The reversal of 828365 is 563828.

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

It can be written as a sum of positive squares in 2 ways, for example, as 426409 + 401956 = 653^2 + 634^2 .

It is a cyclic number.

It is not a de Polignac number, because 828365 - 2² = 828361 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 828365.

It is not an unprimeable number, because it can be changed into a prime (828361) 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, 82832 + ... + 82841.

It is an arithmetic number, because the mean of its divisors is an integer number (248511).

2⁸²⁸³⁶⁵ is an apocalyptic number.

It is an amenable number.

828365 is a deficient number, since it is larger than the sum of its proper divisors (165679).

828365 is a wasteful number, since it uses less digits than its factorization.

828365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165678.

The product of its digits is 11520, while the sum is 32.

The square root of 828365 is about 910.1455927488. The cubic root of 828365 is about 93.9162147638.

The spelling of 828365 in words is "eight hundred twenty-eight thousand, three hundred sixty-five".