260636447 has 2 divisors, whose sum is σ = 260636448. Its totient is φ = 260636446.

The previous prime is 260636429. The next prime is 260636501. The reversal of 260636447 is 744636062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 260636447 - 2⁸ = 260636191 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 260636447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260636407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130318223 + 130318224.

It is an arithmetic number, because the mean of its divisors is an integer number (130318224).

Almost surely, 2^260636447 is an apocalyptic number.

260636447 is a deficient number, since it is larger than the sum of its proper divisors (1).

260636447 is an equidigital number, since it uses as much as digits as its factorization.

260636447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 38.

The square root of 260636447 is about 16144.2388176092. The cubic root of 260636447 is about 638.7707908720.

The spelling of 260636447 in words is "two hundred sixty million, six hundred thirty-six thousand, four hundred forty-seven".