266893097 has 2 divisors, whose sum is σ = 266893098. Its totient is φ = 266893096.

The previous prime is 266893073. The next prime is 266893129. The reversal of 266893097 is 790398662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 262796521 + 4096576 = 16211^2 + 2024^2 .

It is a cyclic number.

It is not a de Polignac number, because 266893097 - 2¹⁴ = 266876713 is a prime.

It is not a weakly prime, because it can be changed into another prime (266893597) 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, 133446548 + 133446549.

It is an arithmetic number, because the mean of its divisors is an integer number (133446549).

Almost surely, 2^266893097 is an apocalyptic number.

It is an amenable number.

266893097 is a deficient number, since it is larger than the sum of its proper divisors (1).

266893097 is an equidigital number, since it uses as much as digits as its factorization.

266893097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 266893097 is about 16336.8631321928. The cubic root of 266893097 is about 643.8417182669.

The spelling of 266893097 in words is "two hundred sixty-six million, eight hundred ninety-three thousand, ninety-seven".