275828 has 12 divisors (see below), whose sum is σ = 551712. Its totient is φ = 118200.

The previous prime is 275827. The next prime is 275837. The reversal of 275828 is 828572.

275828 is an admirable number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 275794 and 275803.

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 275828.

It is not an unprimeable number, because it can be changed into a prime (275827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4898 + ... + 4953.

It is an arithmetic number, because the mean of its divisors is an integer number (45976).

2²⁷⁵⁸²⁸ is an apocalyptic number.

275828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

275828 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

275828 is a wasteful number, since it uses less digits than its factorization.

275828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9862 (or 9860 counting only the distinct ones).

The product of its digits is 8960, while the sum is 32.

The square root of 275828 is about 525.1932977486. The cubic root of 275828 is about 65.0947729921.

The spelling of 275828 in words is "two hundred seventy-five thousand, eight hundred twenty-eight".