268647371 has 2 divisors, whose sum is σ = 268647372. Its totient is φ = 268647370.

The previous prime is 268647349. The next prime is 268647409. The reversal of 268647371 is 173746862.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268647371 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (268647571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134323685 + 134323686.

It is an arithmetic number, because the mean of its divisors is an integer number (134323686).

Almost surely, 2^268647371 is an apocalyptic number.

268647371 is a deficient number, since it is larger than the sum of its proper divisors (1).

268647371 is an equidigital number, since it uses as much as digits as its factorization.

268647371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 44.

The square root of 268647371 is about 16390.4658567107. The cubic root of 268647371 is about 645.2492844887.

The spelling of 268647371 in words is "two hundred sixty-eight million, six hundred forty-seven thousand, three hundred seventy-one".