268647901 has 2 divisors, whose sum is σ = 268647902. Its totient is φ = 268647900.

The previous prime is 268647893. The next prime is 268647947. The reversal of 268647901 is 109746862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 166435801 + 102212100 = 12901^2 + 10110^2 .

It is a cyclic number.

It is not a de Polignac number, because 268647901 - 2³ = 268647893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268645901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134323950 + 134323951.

It is an arithmetic number, because the mean of its divisors is an integer number (134323951).

Almost surely, 2^268647901 is an apocalyptic number.

It is an amenable number.

268647901 is a deficient number, since it is larger than the sum of its proper divisors (1).

268647901 is an equidigital number, since it uses as much as digits as its factorization.

268647901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 268647901 is about 16390.4820246386. The cubic root of 268647901 is about 645.2497088144.

The spelling of 268647901 in words is "two hundred sixty-eight million, six hundred forty-seven thousand, nine hundred one".