276680 has 16 divisors (see below), whose sum is σ = 622620. Its totient is φ = 110656.

The previous prime is 276673. The next prime is 276707. The reversal of 276680 is 86672.

276680 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 2 ways, for example, as 276676 + 4 = 526^2 + 2^2 .

It is an unprimeable number.

276680 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 3419 + ... + 3498.

2²⁷⁶⁶⁸⁰ is an apocalyptic number.

276680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

276680 is an abundant number, since it is smaller than the sum of its proper divisors (345940).

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

276680 is a wasteful number, since it uses less digits than its factorization.

276680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6928 (or 6924 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 276680 is about 526.0038022676. The cubic root of 276680 is about 65.1617274474.

The spelling of 276680 in words is "two hundred seventy-six thousand, six hundred eighty".