447008213 has 4 divisors (see below), whose sum is σ = 448708128. Its totient is φ = 445308300.

The previous prime is 447008209. The next prime is 447008227. The reversal of 447008213 is 312800744.

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 447008213 - 2² = 447008209 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 (447808213) 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, 849563 + ... + 850088.

It is an arithmetic number, because the mean of its divisors is an integer number (112177032).

Almost surely, 2^447008213 is an apocalyptic number.

It is an amenable number.

447008213 is a deficient number, since it is larger than the sum of its proper divisors (1699915).

447008213 is a wasteful number, since it uses less digits than its factorization.

447008213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699914.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 447008213 is about 21142.5687417589. The cubic root of 447008213 is about 764.6074070280.

Adding to 447008213 its reverse (312800744), we get a palindrome (759808957).

The spelling of 447008213 in words is "four hundred forty-seven million, eight thousand, two hundred thirteen".