276000091 has 2 divisors, whose sum is σ = 276000092. Its totient is φ = 276000090.

The previous prime is 276000073. The next prime is 276000103. The reversal of 276000091 is 190000672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 276000091 - 2⁵ = 276000059 is a prime.

It is not a weakly prime, because it can be changed into another prime (276000041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138000045 + 138000046.

It is an arithmetic number, because the mean of its divisors is an integer number (138000046).

Almost surely, 2^276000091 is an apocalyptic number.

276000091 is a deficient number, since it is larger than the sum of its proper divisors (1).

276000091 is an equidigital number, since it uses as much as digits as its factorization.

276000091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 276000091 is about 16613.2504646141. The cubic root of 276000091 is about 651.0830787089.

The spelling of 276000091 in words is "two hundred seventy-six million, ninety-one", and thus it is an aban number.