266286983 has 2 divisors, whose sum is σ = 266286984. Its totient is φ = 266286982.

The previous prime is 266286973. The next prime is 266287009. The reversal of 266286983 is 389682662.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266286983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266286973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133143491 + 133143492.

It is an arithmetic number, because the mean of its divisors is an integer number (133143492).

Almost surely, 2^266286983 is an apocalyptic number.

266286983 is a deficient number, since it is larger than the sum of its proper divisors (1).

266286983 is an equidigital number, since it uses as much as digits as its factorization.

266286983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 50.

The square root of 266286983 is about 16318.3020869207. The cubic root of 266286983 is about 643.3539608469.

The spelling of 266286983 in words is "two hundred sixty-six million, two hundred eighty-six thousand, nine hundred eighty-three".