268930663 has 4 divisors (see below), whose sum is σ = 274652640. Its totient is φ = 263208688.

The previous prime is 268930637. The next prime is 268930679. The reversal of 268930663 is 366039862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366039862 = 2 ⋅183019931.

It is a cyclic number.

It is not a de Polignac number, because 268930663 - 2²⁵ = 235376231 is a prime.

It is a super-3 number, since 3×268930663³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268930063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2860918 + ... + 2861011.

It is an arithmetic number, because the mean of its divisors is an integer number (68663160).

Almost surely, 2^268930663 is an apocalyptic number.

268930663 is a deficient number, since it is larger than the sum of its proper divisors (5721977).

268930663 is an equidigital number, since it uses as much as digits as its factorization.

268930663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5721976.

The product of its (nonzero) digits is 279936, while the sum is 43.

The square root of 268930663 is about 16399.1055548771. The cubic root of 268930663 is about 645.4760126149.

The spelling of 268930663 in words is "two hundred sixty-eight million, nine hundred thirty thousand, six hundred sixty-three".