275620 has 12 divisors (see below), whose sum is σ = 578844. Its totient is φ = 110240.

The previous prime is 275599. The next prime is 275623. The reversal of 275620 is 26572.

275620 is nontrivially palindromic in base 9.

It can be written as a sum of positive squares in 2 ways, for example, as 128164 + 147456 = 358^2 + 384^2 .

It is a junction number, because it is equal to n+sod(n) for n = 275591 and 275600.

It is not an unprimeable number, because it can be changed into a prime (275623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6871 + ... + 6910.

It is an arithmetic number, because the mean of its divisors is an integer number (48237).

2²⁷⁵⁶²⁰ is an apocalyptic number.

275620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275620 is an abundant number, since it is smaller than the sum of its proper divisors (303224).

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

275620 is a wasteful number, since it uses less digits than its factorization.

275620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13790 (or 13788 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 275620 is about 524.9952380736. The cubic root of 275620 is about 65.0784063703.

The spelling of 275620 in words is "two hundred seventy-five thousand, six hundred twenty".