447000660 has 48 divisors (see below), whose sum is σ = 1390670400. Its totient is φ = 119200032.

The previous prime is 447000643. The next prime is 447000661. The reversal of 447000660 is 66000744.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447000661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413350 + ... + 414429.

It is an arithmetic number, because the mean of its divisors is an integer number (28972300).

Almost surely, 2^447000660 is an apocalyptic number.

It is an amenable number.

447000660 is an abundant number, since it is smaller than the sum of its proper divisors (943669740).

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

447000660 is a wasteful number, since it uses less digits than its factorization.

447000660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827797 (or 827789 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 447000660 is about 21142.3901203246. The cubic root of 447000660 is about 764.6031005357.

The spelling of 447000660 in words is "four hundred forty-seven million, six hundred sixty", and thus it is an aban number.