268813723 has 2 divisors, whose sum is σ = 268813724. Its totient is φ = 268813722.

The previous prime is 268813669. The next prime is 268813733. The reversal of 268813723 is 327318862.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268813723 is a prime.

It is not a weakly prime, because it can be changed into another prime (268813733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134406861 + 134406862.

It is an arithmetic number, because the mean of its divisors is an integer number (134406862).

Almost surely, 2^268813723 is an apocalyptic number.

268813723 is a deficient number, since it is larger than the sum of its proper divisors (1).

268813723 is an equidigital number, since it uses as much as digits as its factorization.

268813723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 40.

The square root of 268813723 is about 16395.5397288409. The cubic root of 268813723 is about 645.3824409021.

The spelling of 268813723 in words is "two hundred sixty-eight million, eight hundred thirteen thousand, seven hundred twenty-three".