447516369 has 12 divisors (see below), whose sum is σ = 663883636. Its totient is φ = 290280672.

The previous prime is 447516301. The next prime is 447516373. The reversal of 447516369 is 963615744.

447516369 is a `hidden beast` number, since 4 + 4 + 7 + 5 + 1 + 636 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 265266369 + 182250000 = 16287^2 + 13500^2 .

It is not a de Polignac number, because 447516369 - 2⁹ = 447515857 is a prime.

It is a super-2 number, since 2×447516369² = 400541801045888322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (447516379) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 671614 + ... + 672279.

Almost surely, 2^447516369 is an apocalyptic number.

It is an amenable number.

447516369 is a deficient number, since it is larger than the sum of its proper divisors (216367267).

447516369 is a wasteful number, since it uses less digits than its factorization.

447516369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343936 (or 1343933 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 447516369 is about 21154.5826950096. The cubic root of 447516369 is about 764.8970308673.

The spelling of 447516369 in words is "four hundred forty-seven million, five hundred sixteen thousand, three hundred sixty-nine".