1324221887 has 2 divisors, whose sum is σ = 1324221888. Its totient is φ = 1324221886.

The previous prime is 1324221859. The next prime is 1324221889. The reversal of 1324221887 is 7881224231.

It is a strong prime.

It is an emirp because it is prime and its reverse (7881224231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1324221887 - 2⁸ = 1324221631 is a prime.

It is a super-3 number, since 3×1324221887³ (a number of 28 digits) contains 333 as substring.

Together with 1324221889, it forms a pair of twin primes.

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 1324221887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1324221889) 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, 662110943 + 662110944.

It is an arithmetic number, because the mean of its divisors is an integer number (662110944).

Almost surely, 2^1324221887 is an apocalyptic number.

1324221887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1324221887 is an equidigital number, since it uses as much as digits as its factorization.

1324221887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43008, while the sum is 38.

The square root of 1324221887 is about 36389.8596727165. The cubic root of 1324221887 is about 1098.1295725890.

The spelling of 1324221887 in words is "one billion, three hundred twenty-four million, two hundred twenty-one thousand, eight hundred eighty-seven".