1320773 has 2 divisors, whose sum is σ = 1320774. Its totient is φ = 1320772.

The previous prime is 1320751. The next prime is 1320791. The reversal of 1320773 is 3770231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 833569 + 487204 = 913^2 + 698^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320773 - 2¹² = 1316677 is a prime.

It is a Sophie Germain 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 (1320173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660386 + 660387.

It is an arithmetic number, because the mean of its divisors is an integer number (660387).

2^1320773 is an apocalyptic number.

It is an amenable number.

1320773 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320773 is an equidigital number, since it uses as much as digits as its factorization.

1320773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 1320773 is about 1149.2488851419. The cubic root of 1320773 is about 109.7175397766.

The spelling of 1320773 in words is "one million, three hundred twenty thousand, seven hundred seventy-three".