1328711 has 2 divisors, whose sum is σ = 1328712. Its totient is φ = 1328710.

The previous prime is 1328699. The next prime is 1328729. The reversal of 1328711 is 1178231.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1178231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1328711 - 2⁶ = 1328647 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1328731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664355 + 664356.

It is an arithmetic number, because the mean of its divisors is an integer number (664356).

2^1328711 is an apocalyptic number.

1328711 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328711 is an equidigital number, since it uses as much as digits as its factorization.

1328711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 336, while the sum is 23.

The square root of 1328711 is about 1152.6972716199. The cubic root of 1328711 is about 109.9369059661.

The spelling of 1328711 in words is "one million, three hundred twenty-eight thousand, seven hundred eleven".