268743693 has 4 divisors (see below), whose sum is σ = 358324928. Its totient is φ = 179162460.

The previous prime is 268743689. The next prime is 268743731. The reversal of 268743693 is 396347862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 268743693 - 2² = 268743689 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268742693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44790613 + ... + 44790618.

It is an arithmetic number, because the mean of its divisors is an integer number (89581232).

Almost surely, 2^268743693 is an apocalyptic number.

It is an amenable number.

268743693 is a deficient number, since it is larger than the sum of its proper divisors (89581235).

268743693 is an equidigital number, since it uses as much as digits as its factorization.

268743693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89581234.

The product of its digits is 1306368, while the sum is 48.

The square root of 268743693 is about 16393.4039479298. The cubic root of 268743693 is about 645.3263921048.

The spelling of 268743693 in words is "two hundred sixty-eight million, seven hundred forty-three thousand, six hundred ninety-three".