828255 has 8 divisors (see below), whose sum is σ = 1325232. Its totient is φ = 441728.

The previous prime is 828239. The next prime is 828277. The reversal of 828255 is 552828.

828255 = 405² + 406² + ... + 409².

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 828255 - 2⁴ = 828239 is a prime.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27594 + ... + 27623.

It is an arithmetic number, because the mean of its divisors is an integer number (165654).

2⁸²⁸²⁵⁵ is an apocalyptic number.

828255 is a deficient number, since it is larger than the sum of its proper divisors (496977).

828255 is a wasteful number, since it uses less digits than its factorization.

828255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55225.

The product of its digits is 6400, while the sum is 30.

The square root of 828255 is about 910.0851608503. The cubic root of 828255 is about 93.9120574817.

The spelling of 828255 in words is "eight hundred twenty-eight thousand, two hundred fifty-five".