447966445 has 4 divisors (see below), whose sum is σ = 537559740. Its totient is φ = 358373152.

The previous prime is 447966427. The next prime is 447966487. The reversal of 447966445 is 544669744.

It is a happy number.

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 106234249 + 341732196 = 10307^2 + 18486^2 .

It is a cyclic number.

It is not a de Polignac number, because 447966445 - 2⁵ = 447966413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44796640 + ... + 44796649.

It is an arithmetic number, because the mean of its divisors is an integer number (134389935).

Almost surely, 2^447966445 is an apocalyptic number.

It is an amenable number.

447966445 is a deficient number, since it is larger than the sum of its proper divisors (89593295).

447966445 is an equidigital number, since it uses as much as digits as its factorization.

447966445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89593294.

The product of its digits is 2903040, while the sum is 49.

The square root of 447966445 is about 21165.2178113054. The cubic root of 447966445 is about 765.1533689398.

The spelling of 447966445 in words is "four hundred forty-seven million, nine hundred sixty-six thousand, four hundred forty-five".