1323632647 has 2 divisors, whose sum is σ = 1323632648. Its totient is φ = 1323632646.

The previous prime is 1323632627. The next prime is 1323632657. The reversal of 1323632647 is 7462363231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1323632647 - 2¹¹ = 1323630599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323632627) 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, 661816323 + 661816324.

It is an arithmetic number, because the mean of its divisors is an integer number (661816324).

Almost surely, 2^1323632647 is an apocalyptic number.

1323632647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323632647 is an equidigital number, since it uses as much as digits as its factorization.

1323632647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 37.

The square root of 1323632647 is about 36381.7625603818. The cubic root of 1323632647 is about 1097.9666699128.

Adding to 1323632647 its reverse (7462363231), we get a palindrome (8785995878).

The spelling of 1323632647 in words is "one billion, three hundred twenty-three million, six hundred thirty-two thousand, six hundred forty-seven".