447326321 has 8 divisors (see below), whose sum is σ = 510073704. Its totient is φ = 388627200.

The previous prime is 447326317. The next prime is 447326339. The reversal of 447326321 is 123623744.

It can be written as a sum of positive squares in 4 ways, for example, as 73290721 + 374035600 = 8561^2 + 19340^2 .

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

It is not a de Polignac number, because 447326321 - 2² = 447326317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (447326351) 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, 1011830 + ... + 1012271.

It is an arithmetic number, because the mean of its divisors is an integer number (63759213).

Almost surely, 2^447326321 is an apocalyptic number.

It is an amenable number.

447326321 is a deficient number, since it is larger than the sum of its proper divisors (62747383).

447326321 is a wasteful number, since it uses less digits than its factorization.

447326321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2024131.

The product of its digits is 24192, while the sum is 32.

The square root of 447326321 is about 21150.0903307764. The cubic root of 447326321 is about 764.7887385652.

The spelling of 447326321 in words is "four hundred forty-seven million, three hundred twenty-six thousand, three hundred twenty-one".