275886 has 40 divisors (see below), whose sum is σ = 670824. Its totient is φ = 84240.

The previous prime is 275881. The next prime is 275897. The reversal of 275886 is 688572.

275886 is nontrivially palindromic in base 7.

It is a super-2 number, since 2×275886² = 152226169992, which contains 22 as substring.

It is a Curzon number.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 275886.

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 275886.

It is not an unprimeable number, because it can be changed into a prime (275881) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2041 + ... + 2171.

2²⁷⁵⁸⁸⁶ is an apocalyptic number.

275886 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 275886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335412).

275886 is an abundant number, since it is smaller than the sum of its proper divisors (394938).

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

275886 is a wasteful number, since it uses less digits than its factorization.

275886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 149 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 275886 is about 525.2485126109. The cubic root of 275886 is about 65.0993352945.

Subtracting 275886 from its reverse (688572), we obtain a triangular number (412686 = T₉₀₈).

The spelling of 275886 in words is "two hundred seventy-five thousand, eight hundred eighty-six".