828855 has 24 divisors (see below), whose sum is σ = 1458288. Its totient is φ = 435456.

The previous prime is 828833. The next prime is 828859. The reversal of 828855 is 558828.

It is not a de Polignac number, because 828855 - 2⁵ = 828823 is a prime.

It is a super-2 number, since 2×828855² = 1374001222050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828859) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5004 + ... + 5166.

It is an arithmetic number, because the mean of its divisors is an integer number (60762).

2⁸²⁸⁸⁵⁵ is an apocalyptic number.

828855 is a deficient number, since it is larger than the sum of its proper divisors (629433).

828855 is a wasteful number, since it uses less digits than its factorization.

828855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 284 counting only the distinct ones).

The product of its digits is 25600, while the sum is 36.

The square root of 828855 is about 910.4147406540. The cubic root of 828855 is about 93.9347290960.

The spelling of 828855 in words is "eight hundred twenty-eight thousand, eight hundred fifty-five".