1328565727 has 2 divisors, whose sum is σ = 1328565728. Its totient is φ = 1328565726.

The previous prime is 1328565701. The next prime is 1328565737. The reversal of 1328565727 is 7275658231.

It is a strong prime.

It is an emirp because it is prime and its reverse (7275658231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1328565727 - 2²³ = 1320177119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1328565737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664282863 + 664282864.

It is an arithmetic number, because the mean of its divisors is an integer number (664282864).

Almost surely, 2^1328565727 is an apocalyptic number.

1328565727 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328565727 is an equidigital number, since it uses as much as digits as its factorization.

1328565727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 705600, while the sum is 46.

The square root of 1328565727 is about 36449.4955657825. The cubic root of 1328565727 is about 1099.3289921411.

The spelling of 1328565727 in words is "one billion, three hundred twenty-eight million, five hundred sixty-five thousand, seven hundred twenty-seven".