1263476647 has 2 divisors, whose sum is σ = 1263476648. Its totient is φ = 1263476646.

The previous prime is 1263476633. The next prime is 1263476653. The reversal of 1263476647 is 7466743621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1263476647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1263476597 and 1263476606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1263476657) 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, 631738323 + 631738324.

It is an arithmetic number, because the mean of its divisors is an integer number (631738324).

Almost surely, 2^1263476647 is an apocalyptic number.

1263476647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1263476647 is an equidigital number, since it uses as much as digits as its factorization.

1263476647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 46.

The square root of 1263476647 is about 35545.4166806355. The cubic root of 1263476647 is about 1081.0747893806.

The spelling of 1263476647 in words is "one billion, two hundred sixty-three million, four hundred seventy-six thousand, six hundred forty-seven".