276480811 has 2 divisors, whose sum is σ = 276480812. Its totient is φ = 276480810.

The previous prime is 276480797. The next prime is 276480817. The reversal of 276480811 is 118084672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 276480811 - 2²⁷ = 142263083 is a prime.

It is not a weakly prime, because it can be changed into another prime (276480817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138240405 + 138240406.

It is an arithmetic number, because the mean of its divisors is an integer number (138240406).

Almost surely, 2^276480811 is an apocalyptic number.

276480811 is a deficient number, since it is larger than the sum of its proper divisors (1).

276480811 is an equidigital number, since it uses as much as digits as its factorization.

276480811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 276480811 is about 16627.7121396781. The cubic root of 276480811 is about 651.4608649592.

The spelling of 276480811 in words is "two hundred seventy-six million, four hundred eighty thousand, eight hundred eleven".