445504673 has 2 divisors, whose sum is σ = 445504674. Its totient is φ = 445504672.

The previous prime is 445504649. The next prime is 445504711. The reversal of 445504673 is 376405544.

It is a happy number.

It is an a-pointer prime, because the next prime (445504711) can be obtained adding 445504673 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 314814049 + 130690624 = 17743^2 + 11432^2 .

It is a cyclic number.

It is not a de Polignac number, because 445504673 - 2¹⁴ = 445488289 is a prime.

It is not a weakly prime, because it can be changed into another prime (445504643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222752336 + 222752337.

It is an arithmetic number, because the mean of its divisors is an integer number (222752337).

Almost surely, 2^445504673 is an apocalyptic number.

It is an amenable number.

445504673 is a deficient number, since it is larger than the sum of its proper divisors (1).

445504673 is an equidigital number, since it uses as much as digits as its factorization.

445504673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 38.

The square root of 445504673 is about 21106.9816174649. The cubic root of 445504673 is about 763.7491758380.

The spelling of 445504673 in words is "four hundred forty-five million, five hundred four thousand, six hundred seventy-three".