447191712 has 192 divisors, whose sum is σ = 1436037120. Its totient is φ = 134265600.

The previous prime is 447191707. The next prime is 447191713. The reversal of 447191712 is 217191744.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (447191713) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2005233 + ... + 2005455.

It is an arithmetic number, because the mean of its divisors is an integer number (7479360).

Almost surely, 2^447191712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 447191712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (718018560).

447191712 is an abundant number, since it is smaller than the sum of its proper divisors (988845408).

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

447191712 is a wasteful number, since it uses less digits than its factorization.

447191712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 450 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 447191712 is about 21146.9078590701. The cubic root of 447191712 is about 764.7120177088.

The spelling of 447191712 in words is "four hundred forty-seven million, one hundred ninety-one thousand, seven hundred twelve".