447332121 has 12 divisors (see below), whose sum is σ = 650484900. Its totient is φ = 296219040.

The previous prime is 447332117. The next prime is 447332141. The reversal of 447332121 is 121233744.

It is a happy number.

447332121 is a `hidden beast` number, since 447 + 3 + 3 + 212 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 212139225 + 235192896 = 14565^2 + 15336^2 .

It is not a de Polignac number, because 447332121 - 2² = 447332117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (447332141) 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 11 ways as a sum of consecutive naturals, for example, 165450 + ... + 168131.

It is an arithmetic number, because the mean of its divisors is an integer number (54207075).

Almost surely, 2^447332121 is an apocalyptic number.

It is an amenable number.

447332121 is a deficient number, since it is larger than the sum of its proper divisors (203152779).

447332121 is a wasteful number, since it uses less digits than its factorization.

447332121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333736 (or 333733 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 447332121 is about 21150.2274455855. The cubic root of 447332121 is about 764.7920439489.

Adding to 447332121 its reverse (121233744), we get a palindrome (568565865).

The spelling of 447332121 in words is "four hundred forty-seven million, three hundred thirty-two thousand, one hundred twenty-one".