268530887 has 2 divisors, whose sum is σ = 268530888. Its totient is φ = 268530886.

The previous prime is 268530883. The next prime is 268530907. The reversal of 268530887 is 788035862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268530887 - 2² = 268530883 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268530883) 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, 134265443 + 134265444.

It is an arithmetic number, because the mean of its divisors is an integer number (134265444).

Almost surely, 2^268530887 is an apocalyptic number.

268530887 is a deficient number, since it is larger than the sum of its proper divisors (1).

268530887 is an equidigital number, since it uses as much as digits as its factorization.

268530887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 268530887 is about 16386.9120642054. The cubic root of 268530887 is about 645.1560121777.

The spelling of 268530887 in words is "two hundred sixty-eight million, five hundred thirty thousand, eight hundred eighty-seven".