447107172 has 72 divisors (see below), whose sum is σ = 1089694368. Its totient is φ = 142669440.

The previous prime is 447107153. The next prime is 447107179. The reversal of 447107172 is 271701744.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (447107179) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1579743 + ... + 1580025.

It is an arithmetic number, because the mean of its divisors is an integer number (15134644).

Almost surely, 2^447107172 is an apocalyptic number.

It is an amenable number.

447107172 is an abundant number, since it is smaller than the sum of its proper divisors (642587196).

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

447107172 is a wasteful number, since it uses less digits than its factorization.

447107172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 33.

The square root of 447107172 is about 21144.9088907945. The cubic root of 447107172 is about 764.6638259776.

The spelling of 447107172 in words is "four hundred forty-seven million, one hundred seven thousand, one hundred seventy-two".