447713121 has 4 divisors (see below), whose sum is σ = 596950832. Its totient is φ = 298475412.

The previous prime is 447713113. The next prime is 447713137. The reversal of 447713121 is 121317744.

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 not a de Polignac number, because 447713121 - 2³ = 447713113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (447713111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74618851 + ... + 74618856.

It is an arithmetic number, because the mean of its divisors is an integer number (149237708).

Almost surely, 2^447713121 is an apocalyptic number.

It is an amenable number.

447713121 is a deficient number, since it is larger than the sum of its proper divisors (149237711).

447713121 is a wasteful number, since it uses less digits than its factorization.

447713121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149237710.

The product of its digits is 4704, while the sum is 30.

The square root of 447713121 is about 21159.2325238890. The cubic root of 447713121 is about 765.0091109172.

The spelling of 447713121 in words is "four hundred forty-seven million, seven hundred thirteen thousand, one hundred twenty-one".