268803247 has 4 divisors (see below), whose sum is σ = 270919936. Its totient is φ = 266686560.

The previous prime is 268803221. The next prime is 268803253. The reversal of 268803247 is 742308862.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268803247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268803217) 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, 1058154 + ... + 1058407.

It is an arithmetic number, because the mean of its divisors is an integer number (67729984).

Almost surely, 2^268803247 is an apocalyptic number.

268803247 is a deficient number, since it is larger than the sum of its proper divisors (2116689).

268803247 is a wasteful number, since it uses less digits than its factorization.

268803247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2116688.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 268803247 is about 16395.2202485968. The cubic root of 268803247 is about 645.3740570119.

The spelling of 268803247 in words is "two hundred sixty-eight million, eight hundred three thousand, two hundred forty-seven".