447787860 has 96 divisors (see below), whose sum is σ = 1355260032. Its totient is φ = 109816320.

The previous prime is 447787859. The next prime is 447787861. The reversal of 447787860 is 68787744.

It is an interprime number because it is at equal distance from previous prime (447787859) and next prime (447787861).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447787861) 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, 246355 + ... + 248165.

It is an arithmetic number, because the mean of its divisors is an integer number (14117292).

Almost surely, 2^447787860 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 447787860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (677630016).

447787860 is an abundant number, since it is smaller than the sum of its proper divisors (907472172).

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

447787860 is a wasteful number, since it uses less digits than its factorization.

447787860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153 (or 2151 counting only the distinct ones).

The product of its (nonzero) digits is 2107392, while the sum is 51.

The square root of 447787860 is about 21160.9985586692. The cubic root of 447787860 is about 765.0516774864.

The spelling of 447787860 in words is "four hundred forty-seven million, seven hundred eighty-seven thousand, eight hundred sixty".