447997671 has 12 divisors (see below), whose sum is σ = 705935880. Its totient is φ = 271513680.

The previous prime is 447997663. The next prime is 447997673. The reversal of 447997671 is 176799744.

It is not a de Polignac number, because 447997671 - 2³ = 447997663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447997673) 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 11 ways as a sum of consecutive naturals, for example, 2262516 + ... + 2262713.

It is an arithmetic number, because the mean of its divisors is an integer number (58827990).

Almost surely, 2^447997671 is an apocalyptic number.

447997671 is a deficient number, since it is larger than the sum of its proper divisors (257938209).

447997671 is a wasteful number, since it uses less digits than its factorization.

447997671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4525246 (or 4525243 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 54.

The square root of 447997671 is about 21165.9554709916. The cubic root of 447997671 is about 765.1711471493.

The spelling of 447997671 in words is "four hundred forty-seven million, nine hundred ninety-seven thousand, six hundred seventy-one".