1323744887 has 2 divisors, whose sum is σ = 1323744888. Its totient is φ = 1323744886.

The previous prime is 1323744883. The next prime is 1323744889. The reversal of 1323744887 is 7884473231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1323744887 - 2² = 1323744883 is a prime.

Together with 1323744889, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323744881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661872443 + 661872444.

It is an arithmetic number, because the mean of its divisors is an integer number (661872444).

Almost surely, 2^1323744887 is an apocalyptic number.

1323744887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323744887 is an equidigital number, since it uses as much as digits as its factorization.

1323744887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 903168, while the sum is 47.

The square root of 1323744887 is about 36383.3050587766. The cubic root of 1323744887 is about 1097.9977037741.

The spelling of 1323744887 in words is "one billion, three hundred twenty-three million, seven hundred forty-four thousand, eight hundred eighty-seven".