276764863 has 2 divisors, whose sum is σ = 276764864. Its totient is φ = 276764862.

The previous prime is 276764857. The next prime is 276764903. The reversal of 276764863 is 368467672.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 276764863 - 2⁹ = 276764351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (276764833) 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, 138382431 + 138382432.

It is an arithmetic number, because the mean of its divisors is an integer number (138382432).

Almost surely, 2^276764863 is an apocalyptic number.

276764863 is a deficient number, since it is larger than the sum of its proper divisors (1).

276764863 is an equidigital number, since it uses as much as digits as its factorization.

276764863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 49.

The square root of 276764863 is about 16636.2514708092. The cubic root of 276764863 is about 651.6838887862.

The spelling of 276764863 in words is "two hundred seventy-six million, seven hundred sixty-four thousand, eight hundred sixty-three".