1328573 has 2 divisors, whose sum is σ = 1328574. Its totient is φ = 1328572.

The previous prime is 1328563. The next prime is 1328603. The reversal of 1328573 is 3758231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1044484 + 284089 = 1022^2 + 533^2 .

It is a cyclic number.

It is not a de Polignac number, because 1328573 - 2⁸ = 1328317 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1328563) 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, 664286 + 664287.

It is an arithmetic number, because the mean of its divisors is an integer number (664287).

2^1328573 is an apocalyptic number.

It is an amenable number.

1328573 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328573 is an equidigital number, since it uses as much as digits as its factorization.

1328573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 1328573 is about 1152.6374104635. The cubic root of 1328573 is about 109.9330998165.

The spelling of 1328573 in words is "one million, three hundred twenty-eight thousand, five hundred seventy-three".