447796866 has 32 divisors (see below), whose sum is σ = 1003422528. Its totient is φ = 132027840.

The previous prime is 447796861. The next prime is 447796873. The reversal of 447796866 is 668697744.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (447796861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89245 + ... + 94128.

It is an arithmetic number, because the mean of its divisors is an integer number (31356954).

Almost surely, 2^447796866 is an apocalyptic number.

447796866 is an abundant number, since it is smaller than the sum of its proper divisors (555625662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

447796866 is a wasteful number, since it uses less digits than its factorization.

447796866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183426.

The product of its digits is 12192768, while the sum is 57.

The square root of 447796866 is about 21161.2113547405. The cubic root of 447796866 is about 765.0568064100.

The spelling of 447796866 in words is "four hundred forty-seven million, seven hundred ninety-six thousand, eight hundred sixty-six".