268686337 has 2 divisors, whose sum is σ = 268686338. Its totient is φ = 268686336.

The previous prime is 268686329. The next prime is 268686389. The reversal of 268686337 is 733686862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 267126336 + 1560001 = 16344^2 + 1249^2 .

It is a cyclic number.

It is not a de Polignac number, because 268686337 - 2³ = 268686329 is a prime.

It is not a weakly prime, because it can be changed into another prime (268686307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134343168 + 134343169.

It is an arithmetic number, because the mean of its divisors is an integer number (134343169).

Almost surely, 2^268686337 is an apocalyptic number.

It is an amenable number.

268686337 is a deficient number, since it is larger than the sum of its proper divisors (1).

268686337 is an equidigital number, since it uses as much as digits as its factorization.

268686337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 49.

The square root of 268686337 is about 16391.6544924544. The cubic root of 268686337 is about 645.2804797417.

The spelling of 268686337 in words is "two hundred sixty-eight million, six hundred eighty-six thousand, three hundred thirty-seven".