445107673 has 4 divisors (see below), whose sum is σ = 445696420. Its totient is φ = 444518928.

The previous prime is 445107629. The next prime is 445107697. The reversal of 445107673 is 376701544.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 140849424 + 304258249 = 11868^2 + 17443^2 .

It is a cyclic number.

It is not a de Polignac number, because 445107673 - 2⁹ = 445107161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445107973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293238 + ... + 294751.

It is an arithmetic number, because the mean of its divisors is an integer number (111424105).

Almost surely, 2^445107673 is an apocalyptic number.

It is an amenable number.

445107673 is a deficient number, since it is larger than the sum of its proper divisors (588747).

445107673 is an equidigital number, since it uses as much as digits as its factorization.

445107673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588746.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 445107673 is about 21097.5750502279. The cubic root of 445107673 is about 763.5222432891.

The spelling of 445107673 in words is "four hundred forty-five million, one hundred seven thousand, six hundred seventy-three".