447676321 has 4 divisors (see below), whose sum is σ = 449460144. Its totient is φ = 445892500.

The previous prime is 447676297. The next prime is 447676343. The reversal of 447676321 is 123676744.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 447676321 - 2⁵ = 447676289 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (447676121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 891535 + ... + 892036.

It is an arithmetic number, because the mean of its divisors is an integer number (112365036).

Almost surely, 2^447676321 is an apocalyptic number.

It is an amenable number.

447676321 is a deficient number, since it is larger than the sum of its proper divisors (1783823).

447676321 is a wasteful number, since it uses less digits than its factorization.

447676321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783822.

The product of its digits is 169344, while the sum is 40.

The square root of 447676321 is about 21158.3629092612. The cubic root of 447676321 is about 764.9881502429.

The spelling of 447676321 in words is "four hundred forty-seven million, six hundred seventy-six thousand, three hundred twenty-one".