268354217 has 2 divisors, whose sum is σ = 268354218. Its totient is φ = 268354216.

The previous prime is 268354213. The next prime is 268354237. The reversal of 268354217 is 712453862.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239506576 + 28847641 = 15476^2 + 5371^2 .

It is a cyclic number.

It is not a de Polignac number, because 268354217 - 2² = 268354213 is a prime.

It is not a weakly prime, because it can be changed into another prime (268354213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134177108 + 134177109.

It is an arithmetic number, because the mean of its divisors is an integer number (134177109).

Almost surely, 2^268354217 is an apocalyptic number.

It is an amenable number.

268354217 is a deficient number, since it is larger than the sum of its proper divisors (1).

268354217 is an equidigital number, since it uses as much as digits as its factorization.

268354217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 38.

The square root of 268354217 is about 16381.5205948654. The cubic root of 268354217 is about 645.0144955979.

The spelling of 268354217 in words is "two hundred sixty-eight million, three hundred fifty-four thousand, two hundred seventeen".