447303385 has 4 divisors (see below), whose sum is σ = 536764068. Its totient is φ = 357842704.

The previous prime is 447303383. The next prime is 447303401. The reversal of 447303385 is 583303744.

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 210482064 + 236821321 = 14508^2 + 15389^2 .

It is a cyclic number.

It is not a de Polignac number, because 447303385 - 2¹ = 447303383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (447303383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44730334 + ... + 44730343.

It is an arithmetic number, because the mean of its divisors is an integer number (134191017).

Almost surely, 2^447303385 is an apocalyptic number.

It is an amenable number.

447303385 is a deficient number, since it is larger than the sum of its proper divisors (89460683).

447303385 is an equidigital number, since it uses as much as digits as its factorization.

447303385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89460682.

The product of its (nonzero) digits is 120960, while the sum is 37.

The square root of 447303385 is about 21149.5481039194. The cubic root of 447303385 is about 764.7756672020.

The spelling of 447303385 in words is "four hundred forty-seven million, three hundred three thousand, three hundred eighty-five".