276506 has 8 divisors (see below), whose sum is σ = 432864. Its totient is φ = 132220.

The previous prime is 276503. The next prime is 276517. The reversal of 276506 is 605672.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (276503) 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, 2960 + ... + 3051.

It is an arithmetic number, because the mean of its divisors is an integer number (54108).

2²⁷⁶⁵⁰⁶ is an apocalyptic number.

276506 is a deficient number, since it is larger than the sum of its proper divisors (156358).

276506 is a wasteful number, since it uses less digits than its factorization.

276506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6036.

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

The square root of 276506 is about 525.8383782114. The cubic root of 276506 is about 65.1480648309.

It can be divided in two parts, 276 and 506, that multiplied together give a triangular number (139656 = T₅₂₈).

The spelling of 276506 in words is "two hundred seventy-six thousand, five hundred six".