447008189 has 12 divisors (see below), whose sum is σ = 463353660. Its totient is φ = 431222400.

The previous prime is 447008171. The next prime is 447008207. The reversal of 447008189 is 981800744.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (447008171) and next prime (447008207).

It can be written as a sum of positive squares in 2 ways, for example, as 140232964 + 306775225 = 11842^2 + 17515^2 .

It is not a de Polignac number, because 447008189 - 2¹² = 447004093 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 (447008129) 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, 442517 + ... + 443525.

It is an arithmetic number, because the mean of its divisors is an integer number (38612805).

Almost surely, 2^447008189 is an apocalyptic number.

It is an amenable number.

447008189 is a deficient number, since it is larger than the sum of its proper divisors (16345471).

447008189 is a wasteful number, since it uses less digits than its factorization.

447008189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532 (or 1501 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 447008189 is about 21142.5681741836. The cubic root of 447008189 is about 764.6073933440.

The spelling of 447008189 in words is "four hundred forty-seven million, eight thousand, one hundred eighty-nine".