445968447 has 8 divisors (see below), whose sum is σ = 605844144. Its totient is φ = 291702528.

The previous prime is 445968431. The next prime is 445968451. The reversal of 445968447 is 744869544.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 445968447 - 2⁴ = 445968431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 445968447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445968427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1402258 + ... + 1402575.

It is an arithmetic number, because the mean of its divisors is an integer number (75730518).

Almost surely, 2^445968447 is an apocalyptic number.

445968447 is a deficient number, since it is larger than the sum of its proper divisors (159875697).

445968447 is a wasteful number, since it uses less digits than its factorization.

445968447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2804889.

The product of its digits is 3870720, while the sum is 51.

The square root of 445968447 is about 21117.9650298034. The cubic root of 445968447 is about 764.0141069689.

The spelling of 445968447 in words is "four hundred forty-five million, nine hundred sixty-eight thousand, four hundred forty-seven".