445573 has 2 divisors, whose sum is σ = 445574. Its totient is φ = 445572.

The previous prime is 445567. The next prime is 445583. The reversal of 445573 is 375544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 431649 + 13924 = 657^2 + 118^2 .

It is a cyclic number.

It is not a de Polignac number, because 445573 - 2⁵ = 445541 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222786 + 222787.

It is an arithmetic number, because the mean of its divisors is an integer number (222787).

2⁴⁴⁵⁵⁷³ is an apocalyptic number.

It is an amenable number.

445573 is a deficient number, since it is larger than the sum of its proper divisors (1).

445573 is an equidigital number, since it uses as much as digits as its factorization.

445573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 28.

The square root of 445573 is about 667.5125466986. The cubic root of 445573 is about 76.3788219216.

The spelling of 445573 in words is "four hundred forty-five thousand, five hundred seventy-three".