266835983 has 2 divisors, whose sum is σ = 266835984. Its totient is φ = 266835982.

The previous prime is 266835929. The next prime is 266835997. The reversal of 266835983 is 389538662.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266835983 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266835883) 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, 133417991 + 133417992.

It is an arithmetic number, because the mean of its divisors is an integer number (133417992).

Almost surely, 2^266835983 is an apocalyptic number.

266835983 is a deficient number, since it is larger than the sum of its proper divisors (1).

266835983 is an equidigital number, since it uses as much as digits as its factorization.

266835983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 50.

The square root of 266835983 is about 16335.1150286737. The cubic root of 266835983 is about 643.7957885174.

The spelling of 266835983 in words is "two hundred sixty-six million, eight hundred thirty-five thousand, nine hundred eighty-three".