447994166 has 8 divisors (see below), whose sum is σ = 711520200. Its totient is φ = 210820768.

The previous prime is 447994163. The next prime is 447994171. The reversal of 447994166 is 661499744.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447994163) 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, 6588116 + ... + 6588183.

It is an arithmetic number, because the mean of its divisors is an integer number (88940025).

Almost surely, 2^447994166 is an apocalyptic number.

447994166 is a deficient number, since it is larger than the sum of its proper divisors (263526034).

447994166 is a wasteful number, since it uses less digits than its factorization.

447994166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13176318.

The product of its digits is 1306368, while the sum is 50.

The square root of 447994166 is about 21165.8726727721. The cubic root of 447994166 is about 765.1691516539.

The spelling of 447994166 in words is "four hundred forty-seven million, nine hundred ninety-four thousand, one hundred sixty-six".