276263969 has 2 divisors, whose sum is σ = 276263970. Its totient is φ = 276263968.

The previous prime is 276263929. The next prime is 276263993. The reversal of 276263969 is 969362672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 258791569 + 17472400 = 16087^2 + 4180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-276263969 is a prime.

It is a super-2 number, since 2×276263969² = 152643561135265922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (276263929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138131984 + 138131985.

It is an arithmetic number, because the mean of its divisors is an integer number (138131985).

Almost surely, 2^276263969 is an apocalyptic number.

It is an amenable number.

276263969 is a deficient number, since it is larger than the sum of its proper divisors (1).

276263969 is an equidigital number, since it uses as much as digits as its factorization.

276263969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 50.

The square root of 276263969 is about 16621.1903605007. The cubic root of 276263969 is about 651.2905083218.

The spelling of 276263969 in words is "two hundred seventy-six million, two hundred sixty-three thousand, nine hundred sixty-nine".