828895 has 4 divisors (see below), whose sum is σ = 994680. Its totient is φ = 663112.

The previous prime is 828889. The next prime is 828899. The reversal of 828895 is 598828.

It is a happy number.

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 828895 - 2⁹ = 828383 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

828895 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82885 + ... + 82894.

It is an arithmetic number, because the mean of its divisors is an integer number (248670).

2⁸²⁸⁸⁹⁵ is an apocalyptic number.

828895 is a deficient number, since it is larger than the sum of its proper divisors (165785).

828895 is a wasteful number, since it uses less digits than its factorization.

828895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165784.

The product of its digits is 46080, while the sum is 40.

The square root of 828895 is about 910.4367083988. The cubic root of 828895 is about 93.9362401479.

The spelling of 828895 in words is "eight hundred twenty-eight thousand, eight hundred ninety-five".