268807247 has 4 divisors (see below), whose sum is σ = 284619456. Its totient is φ = 252995040.

The previous prime is 268807229. The next prime is 268807261. The reversal of 268807247 is 742708862.

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-268807247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 268807198 and 268807207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268807277) 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, 7906079 + ... + 7906112.

It is an arithmetic number, because the mean of its divisors is an integer number (71154864).

Almost surely, 2^268807247 is an apocalyptic number.

268807247 is a deficient number, since it is larger than the sum of its proper divisors (15812209).

268807247 is a wasteful number, since it uses less digits than its factorization.

268807247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15812208.

The product of its (nonzero) digits is 301056, while the sum is 44.

The square root of 268807247 is about 16395.3422349154. The cubic root of 268807247 is about 645.3772582175.

The spelling of 268807247 in words is "two hundred sixty-eight million, eight hundred seven thousand, two hundred forty-seven".