276065 has 4 divisors (see below), whose sum is σ = 331284. Its totient is φ = 220848.

The previous prime is 276049. The next prime is 276079. The reversal of 276065 is 560672.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 134689 + 141376 = 367^2 + 376^2 .

It is a cyclic number.

It is not a de Polignac number, because 276065 - 2⁴ = 276049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27602 + ... + 27611.

It is an arithmetic number, because the mean of its divisors is an integer number (82821).

2²⁷⁶⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

276065 is a deficient number, since it is larger than the sum of its proper divisors (55219).

276065 is an equidigital number, since it uses as much as digits as its factorization.

276065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55218.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 276065 is about 525.4188805134. The cubic root of 276065 is about 65.1134114730.

It can be divided in two parts, 2 and 76065, that added together give a palindrome (76067).

The spelling of 276065 in words is "two hundred seventy-six thousand, sixty-five".