447039013 has 4 divisors (see below), whose sum is σ = 447304140. Its totient is φ = 446773888.

The previous prime is 447039007. The next prime is 447039023. The reversal of 447039013 is 310930744.

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 249861249 + 197177764 = 15807^2 + 14042^2 .

It is a cyclic number.

It is not a de Polignac number, because 447039013 - 2⁵ = 447038981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447039023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130018 + ... + 133411.

It is an arithmetic number, because the mean of its divisors is an integer number (111826035).

Almost surely, 2^447039013 is an apocalyptic number.

It is an amenable number.

447039013 is a deficient number, since it is larger than the sum of its proper divisors (265127).

447039013 is a wasteful number, since it uses less digits than its factorization.

447039013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265126.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 447039013 is about 21143.2971175264. The cubic root of 447039013 is about 764.6249677548.

Adding to 447039013 its reverse (310930744), we get a palindrome (757969757).

The spelling of 447039013 in words is "four hundred forty-seven million, thirty-nine thousand, thirteen".