447166427 has 4 divisors (see below), whose sum is σ = 447845640. Its totient is φ = 446487216.

The previous prime is 447166409. The next prime is 447166429. The reversal of 447166427 is 724661744.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 447166427 - 2¹⁰ = 447165403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (447166429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338618 + ... + 339935.

It is an arithmetic number, because the mean of its divisors is an integer number (111961410).

Almost surely, 2^447166427 is an apocalyptic number.

447166427 is a deficient number, since it is larger than the sum of its proper divisors (679213).

447166427 is an equidigital number, since it uses as much as digits as its factorization.

447166427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679212.

The product of its digits is 225792, while the sum is 41.

The square root of 447166427 is about 21146.3100090772. The cubic root of 447166427 is about 764.6976047197.

The spelling of 447166427 in words is "four hundred forty-seven million, one hundred sixty-six thousand, four hundred twenty-seven".