445632673 has 2 divisors, whose sum is σ = 445632674. Its totient is φ = 445632672.

The previous prime is 445632643. The next prime is 445632689. The reversal of 445632673 is 376236544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 394538769 + 51093904 = 19863^2 + 7148^2 .

It is a cyclic number.

It is not a de Polignac number, because 445632673 - 2¹⁷ = 445501601 is a prime.

It is not a weakly prime, because it can be changed into another prime (445632643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222816336 + 222816337.

It is an arithmetic number, because the mean of its divisors is an integer number (222816337).

Almost surely, 2^445632673 is an apocalyptic number.

It is an amenable number.

445632673 is a deficient number, since it is larger than the sum of its proper divisors (1).

445632673 is an equidigital number, since it uses as much as digits as its factorization.

445632673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 40.

The square root of 445632673 is about 21110.0135717626. The cubic root of 445632673 is about 763.8223142652.

The spelling of 445632673 in words is "four hundred forty-five million, six hundred thirty-two thousand, six hundred seventy-three".