1448789 has 2 divisors, whose sum is σ = 1448790. Its totient is φ = 1448788.

The previous prime is 1448779. The next prime is 1448801. The reversal of 1448789 is 9878441.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 874225 + 574564 = 935^2 + 758^2 .

It is a cyclic number.

It is not a de Polignac number, because 1448789 - 2⁸ = 1448533 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1448779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 724394 + 724395.

It is an arithmetic number, because the mean of its divisors is an integer number (724395).

2^1448789 is an apocalyptic number.

It is an amenable number.

1448789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1448789 is an equidigital number, since it uses as much as digits as its factorization.

1448789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 41.

The square root of 1448789 is about 1203.6565124652. The cubic root of 1448789 is about 113.1536011237.

The spelling of 1448789 in words is "one million, four hundred forty-eight thousand, seven hundred eighty-nine".