276990269 has 2 divisors, whose sum is σ = 276990270. Its totient is φ = 276990268.

The previous prime is 276990257. The next prime is 276990293. The reversal of 276990269 is 962099672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 266505625 + 10484644 = 16325^2 + 3238^2 .

It is a cyclic number.

It is not a de Polignac number, because 276990269 - 2⁸ = 276990013 is a prime.

It is a super-2 number, since 2×276990269² = 153447218241384722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (276990209) by changing a digit.

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 as a sum of consecutive naturals, namely, 138495134 + 138495135.

It is an arithmetic number, because the mean of its divisors is an integer number (138495135).

Almost surely, 2^276990269 is an apocalyptic number.

It is an amenable number.

276990269 is a deficient number, since it is larger than the sum of its proper divisors (1).

276990269 is an equidigital number, since it uses as much as digits as its factorization.

276990269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 50.

The square root of 276990269 is about 16643.0246349634. The cubic root of 276990269 is about 651.8607580570.

The spelling of 276990269 in words is "two hundred seventy-six million, nine hundred ninety thousand, two hundred sixty-nine".