1266893 has 2 divisors, whose sum is σ = 1266894. Its totient is φ = 1266892.

The previous prime is 1266883. The next prime is 1266899. The reversal of 1266893 is 3986621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 779689 + 487204 = 883^2 + 698^2 .

It is a cyclic number.

It is not a de Polignac number, because 1266893 - 2¹⁸ = 1004749 is a prime.

It is equal to p₉₇₆₈₅ and since 1266893 and 97685 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1266899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633446 + 633447.

It is an arithmetic number, because the mean of its divisors is an integer number (633447).

2^1266893 is an apocalyptic number.

It is an amenable number.

1266893 is a deficient number, since it is larger than the sum of its proper divisors (1).

1266893 is an equidigital number, since it uses as much as digits as its factorization.

1266893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The square root of 1266893 is about 1125.5634144729. The cubic root of 1266893 is about 108.2048296162.

The spelling of 1266893 in words is "one million, two hundred sixty-six thousand, eight hundred ninety-three".