447729752 has 32 divisors (see below), whose sum is σ = 855213120. Its totient is φ = 219690240.

The previous prime is 447729749. The next prime is 447729757. The reversal of 447729752 is 257927744.

It is a happy number.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 447729697 and 447729706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447729757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300353 + ... + 301839.

It is an arithmetic number, because the mean of its divisors is an integer number (26725410).

Almost surely, 2^447729752 is an apocalyptic number.

It is an amenable number.

447729752 is a deficient number, since it is larger than the sum of its proper divisors (407483368).

447729752 is a wasteful number, since it uses less digits than its factorization.

447729752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171 (or 2167 counting only the distinct ones).

The product of its digits is 987840, while the sum is 47.

The square root of 447729752 is about 21159.6255165350. The cubic root of 447729752 is about 765.0185832842.

The spelling of 447729752 in words is "four hundred forty-seven million, seven hundred twenty-nine thousand, seven hundred fifty-two".