276997 has 6 divisors (see below), whose sum is σ = 322278. Its totient is φ = 237384.

The previous prime is 276977. The next prime is 277003. The reversal of 276997 is 799672.

It can be written as a sum of positive squares in only one way, i.e., 261121 + 15876 = 511^2 + 126^2 .

It is not a de Polignac number, because 276997 - 2⁷ = 276869 is a prime.

It is a Duffinian number.

276997 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276907) 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 5 ways as a sum of consecutive naturals, for example, 2778 + ... + 2875.

It is an arithmetic number, because the mean of its divisors is an integer number (53713).

2²⁷⁶⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

276997 is a deficient number, since it is larger than the sum of its proper divisors (45281).

276997 is an equidigital number, since it uses as much as digits as its factorization.

276997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5667 (or 5660 counting only the distinct ones).

The product of its digits is 47628, while the sum is 40.

The square root of 276997 is about 526.3050446272. The cubic root of 276997 is about 65.1866038193.

The spelling of 276997 in words is "two hundred seventy-six thousand, nine hundred ninety-seven".