447224013 has 6 divisors (see below), whose sum is σ = 645990254. Its totient is φ = 298149336.

The previous prime is 447223999. The next prime is 447224027. The reversal of 447224013 is 310422744.

It is an interprime number because it is at equal distance from previous prime (447223999) and next prime (447224027).

It can be written as a sum of positive squares in only one way, i.e., 232806564 + 214417449 = 15258^2 + 14643^2 .

It is not a de Polignac number, because 447224013 - 2¹⁰ = 447222989 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 (447220013) 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 5 ways as a sum of consecutive naturals, for example, 24845770 + ... + 24845787.

Almost surely, 2^447224013 is an apocalyptic number.

It is an amenable number.

447224013 is a deficient number, since it is larger than the sum of its proper divisors (198766241).

447224013 is a wasteful number, since it uses less digits than its factorization.

447224013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49691563 (or 49691560 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 447224013 is about 21147.6715739582. The cubic root of 447224013 is about 764.7304291771.

Adding to 447224013 its reverse (310422744), we get a palindrome (757646757).

The spelling of 447224013 in words is "four hundred forty-seven million, two hundred twenty-four thousand, thirteen".