266922793 has 2 divisors, whose sum is σ = 266922794. Its totient is φ = 266922792.

The previous prime is 266922791. The next prime is 266922809. The reversal of 266922793 is 397229662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145636624 + 121286169 = 12068^2 + 11013^2 .

It is a cyclic number.

It is not a de Polignac number, because 266922793 - 2¹ = 266922791 is a prime.

Together with 266922791, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (266922791) 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, 133461396 + 133461397.

It is an arithmetic number, because the mean of its divisors is an integer number (133461397).

Almost surely, 2^266922793 is an apocalyptic number.

It is an amenable number.

266922793 is a deficient number, since it is larger than the sum of its proper divisors (1).

266922793 is an equidigital number, since it uses as much as digits as its factorization.

266922793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 46.

The square root of 266922793 is about 16337.7719717225. The cubic root of 266922793 is about 643.8655965098.

The spelling of 266922793 in words is "two hundred sixty-six million, nine hundred twenty-two thousand, seven hundred ninety-three".