268361647 has 2 divisors, whose sum is σ = 268361648. Its totient is φ = 268361646.

The previous prime is 268361623. The next prime is 268361683. The reversal of 268361647 is 746163862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268361647 - 2²³ = 259973039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268361047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134180823 + 134180824.

It is an arithmetic number, because the mean of its divisors is an integer number (134180824).

Almost surely, 2^268361647 is an apocalyptic number.

268361647 is a deficient number, since it is larger than the sum of its proper divisors (1).

268361647 is an equidigital number, since it uses as much as digits as its factorization.

268361647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 43.

The square root of 268361647 is about 16381.7473732200. The cubic root of 268361647 is about 645.0204484433.

The spelling of 268361647 in words is "two hundred sixty-eight million, three hundred sixty-one thousand, six hundred forty-seven".