268547693 has 2 divisors, whose sum is σ = 268547694. Its totient is φ = 268547692.

The previous prime is 268547689. The next prime is 268547711. The reversal of 268547693 is 396745862.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 268533769 + 13924 = 16387^2 + 118^2 .

It is a cyclic number.

It is not a de Polignac number, because 268547693 - 2² = 268547689 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268547633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134273846 + 134273847.

It is an arithmetic number, because the mean of its divisors is an integer number (134273847).

Almost surely, 2^268547693 is an apocalyptic number.

It is an amenable number.

268547693 is a deficient number, since it is larger than the sum of its proper divisors (1).

268547693 is an equidigital number, since it uses as much as digits as its factorization.

268547693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 50.

The square root of 268547693 is about 16387.4248434585. The cubic root of 268547693 is about 645.1694709222.

The spelling of 268547693 in words is "two hundred sixty-eight million, five hundred forty-seven thousand, six hundred ninety-three".