1327889 has 2 divisors, whose sum is σ = 1327890. Its totient is φ = 1327888.

The previous prime is 1327877. The next prime is 1327901. The reversal of 1327889 is 9887231.

It is a balanced prime because it is at equal distance from previous prime (1327877) and next prime (1327901).

It can be written as a sum of positive squares in only one way, i.e., 739600 + 588289 = 860^2 + 767^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1327889 is a prime.

It is not a weakly prime, because it can be changed into another prime (1327849) 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, 663944 + 663945.

It is an arithmetic number, because the mean of its divisors is an integer number (663945).

2^1327889 is an apocalyptic number.

It is an amenable number.

1327889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1327889 is an equidigital number, since it uses as much as digits as its factorization.

1327889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 38.

The square root of 1327889 is about 1152.3406614365. The cubic root of 1327889 is about 109.9142306619.

The spelling of 1327889 in words is "one million, three hundred twenty-seven thousand, eight hundred eighty-nine".