447573321 has 12 divisors (see below), whose sum is σ = 696225348. Its totient is φ = 275429664.

The previous prime is 447573299. The next prime is 447573323. The reversal of 447573321 is 123375744.

It can be written as a sum of positive squares in 2 ways, for example, as 223921296 + 223652025 = 14964^2 + 14955^2 .

It is not a de Polignac number, because 447573321 - 2¹⁴ = 447556937 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (447573323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1912590 + ... + 1912823.

It is an arithmetic number, because the mean of its divisors is an integer number (58018779).

Almost surely, 2^447573321 is an apocalyptic number.

It is an amenable number.

447573321 is a deficient number, since it is larger than the sum of its proper divisors (248652027).

447573321 is a wasteful number, since it uses less digits than its factorization.

447573321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3825432 (or 3825429 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 447573321 is about 21155.9287434988. The cubic root of 447573321 is about 764.9294770309.

The spelling of 447573321 in words is "four hundred forty-seven million, five hundred seventy-three thousand, three hundred twenty-one".