276985 has 8 divisors (see below), whose sum is σ = 343296. Its totient is φ = 214320.

The previous prime is 276977. The next prime is 277003. The reversal of 276985 is 589672.

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

It is not a de Polignac number, because 276985 - 2³ = 276977 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 739 + ... + 1048.

It is an arithmetic number, because the mean of its divisors is an integer number (42912).

2²⁷⁶⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

276985 is a deficient number, since it is larger than the sum of its proper divisors (66311).

276985 is a wasteful number, since it uses less digits than its factorization.

276985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823.

The product of its digits is 30240, while the sum is 37.

The square root of 276985 is about 526.2936442710. The cubic root of 276985 is about 65.1856624728.

The spelling of 276985 in words is "two hundred seventy-six thousand, nine hundred eighty-five".