266794729 has 2 divisors, whose sum is σ = 266794730. Its totient is φ = 266794728.

The previous prime is 266794727. The next prime is 266794741. The reversal of 266794729 is 927497662.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167832025 + 98962704 = 12955^2 + 9948^2 .

It is a cyclic number.

It is not a de Polignac number, because 266794729 - 2¹ = 266794727 is a prime.

Together with 266794727, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (266794727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133397364 + 133397365.

It is an arithmetic number, because the mean of its divisors is an integer number (133397365).

Almost surely, 2^266794729 is an apocalyptic number.

It is an amenable number.

266794729 is a deficient number, since it is larger than the sum of its proper divisors (1).

266794729 is an equidigital number, since it uses as much as digits as its factorization.

266794729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 52.

The square root of 266794729 is about 16333.8522400565. The cubic root of 266794729 is about 643.7626089339.

The spelling of 266794729 in words is "two hundred sixty-six million, seven hundred ninety-four thousand, seven hundred twenty-nine".