268746497 has 2 divisors, whose sum is σ = 268746498. Its totient is φ = 268746496.

The previous prime is 268746493. The next prime is 268746521. The reversal of 268746497 is 794647862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227285776 + 41460721 = 15076^2 + 6439^2 .

It is a cyclic number.

It is not a de Polignac number, because 268746497 - 2² = 268746493 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (268746493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134373248 + 134373249.

It is an arithmetic number, because the mean of its divisors is an integer number (134373249).

Almost surely, 2^268746497 is an apocalyptic number.

It is an amenable number.

268746497 is a deficient number, since it is larger than the sum of its proper divisors (1).

268746497 is an equidigital number, since it uses as much as digits as its factorization.

268746497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4064256, while the sum is 53.

The square root of 268746497 is about 16393.4894699085. The cubic root of 268746497 is about 645.3286364848.

The spelling of 268746497 in words is "two hundred sixty-eight million, seven hundred forty-six thousand, four hundred ninety-seven".