1329673 has 2 divisors, whose sum is σ = 1329674. Its totient is φ = 1329672.

The previous prime is 1329661. The next prime is 1329701. The reversal of 1329673 is 3769231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1159929 + 169744 = 1077^2 + 412^2 .

It is an emirp because it is prime and its reverse (3769231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1329673 - 2⁹ = 1329161 is a prime.

It is not a weakly prime, because it can be changed into another prime (1329623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664836 + 664837.

It is an arithmetic number, because the mean of its divisors is an integer number (664837).

2^1329673 is an apocalyptic number.

It is an amenable number.

1329673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1329673 is an equidigital number, since it uses as much as digits as its factorization.

1329673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 31.

The square root of 1329673 is about 1153.1144782718. The cubic root of 1329673 is about 109.9634313706.

It can be divided in two parts, 1329 and 673, that added together give a palindrome (2002).

The spelling of 1329673 in words is "one million, three hundred twenty-nine thousand, six hundred seventy-three".