276427243 has 2 divisors, whose sum is σ = 276427244. Its totient is φ = 276427242.

The previous prime is 276427237. The next prime is 276427247. The reversal of 276427243 is 342724672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 276427243 - 2¹³ = 276419051 is a prime.

It is not a weakly prime, because it can be changed into another prime (276427247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138213621 + 138213622.

It is an arithmetic number, because the mean of its divisors is an integer number (138213622).

Almost surely, 2^276427243 is an apocalyptic number.

276427243 is a deficient number, since it is larger than the sum of its proper divisors (1).

276427243 is an equidigital number, since it uses as much as digits as its factorization.

276427243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 37.

The square root of 276427243 is about 16626.1012567589. The cubic root of 276427243 is about 651.4187888509.

The spelling of 276427243 in words is "two hundred seventy-six million, four hundred twenty-seven thousand, two hundred forty-three".