276704641 has 2 divisors, whose sum is σ = 276704642. Its totient is φ = 276704640.

The previous prime is 276704629. The next prime is 276704671. The reversal of 276704641 is 146407672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 276058225 + 646416 = 16615^2 + 804^2 .

It is a cyclic number.

It is not a de Polignac number, because 276704641 - 2⁵ = 276704609 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 276704641.

It is not a weakly prime, because it can be changed into another prime (276704621) 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, 138352320 + 138352321.

It is an arithmetic number, because the mean of its divisors is an integer number (138352321).

Almost surely, 2^276704641 is an apocalyptic number.

It is an amenable number.

276704641 is a deficient number, since it is larger than the sum of its proper divisors (1).

276704641 is an equidigital number, since it uses as much as digits as its factorization.

276704641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 276704641 is about 16634.4414093170. The cubic root of 276704641 is about 651.6366181494.

The spelling of 276704641 in words is "two hundred seventy-six million, seven hundred four thousand, six hundred forty-one".