447551872 has 16 divisors (see below), whose sum is σ = 891607500. Its totient is φ = 223775872.

The previous prime is 447551861. The next prime is 447551873. The reversal of 447551872 is 278155744.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447551873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1748122 + ... + 1748377.

Almost surely, 2^447551872 is an apocalyptic number.

It is an amenable number.

447551872 is a deficient number, since it is larger than the sum of its proper divisors (444055628).

447551872 is an equidigital number, since it uses as much as digits as its factorization.

447551872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3496513 (or 3496501 counting only the distinct ones).

The product of its digits is 313600, while the sum is 43.

The square root of 447551872 is about 21155.4218109685. The cubic root of 447551872 is about 764.9172576293.

The spelling of 447551872 in words is "four hundred forty-seven million, five hundred fifty-one thousand, eight hundred seventy-two".