268659397 has 2 divisors, whose sum is σ = 268659398. Its totient is φ = 268659396.

The previous prime is 268659317. The next prime is 268659403. The reversal of 268659397 is 793956862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 256832676 + 11826721 = 16026^2 + 3439^2 .

It is a cyclic number.

It is not a de Polignac number, because 268659397 - 2²³ = 260270789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268659317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134329698 + 134329699.

It is an arithmetic number, because the mean of its divisors is an integer number (134329699).

Almost surely, 2^268659397 is an apocalyptic number.

It is an amenable number.

268659397 is a deficient number, since it is larger than the sum of its proper divisors (1).

268659397 is an equidigital number, since it uses as much as digits as its factorization.

268659397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4898880, while the sum is 55.

The square root of 268659397 is about 16390.8327122206. The cubic root of 268659397 is about 645.2589125402.

The spelling of 268659397 in words is "two hundred sixty-eight million, six hundred fifty-nine thousand, three hundred ninety-seven".