828885 has 8 divisors (see below), whose sum is σ = 1326240. Its totient is φ = 442064.

The previous prime is 828881. The next prime is 828889. The reversal of 828885 is 588828.

It is an interprime number because it is at equal distance from previous prime (828881) and next prime (828889).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 828885 - 2² = 828881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828881) 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 7 ways as a sum of consecutive naturals, for example, 27615 + ... + 27644.

It is an arithmetic number, because the mean of its divisors is an integer number (165780).

2⁸²⁸⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

828885 is a deficient number, since it is larger than the sum of its proper divisors (497355).

828885 is a wasteful number, since it uses less digits than its factorization.

828885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55267.

The product of its digits is 40960, while the sum is 39.

The square root of 828885 is about 910.4312165123. The cubic root of 828885 is about 93.9358623894.

The spelling of 828885 in words is "eight hundred twenty-eight thousand, eight hundred eighty-five".