447661696 has 64 divisors (see below), whose sum is σ = 943801920. Its totient is φ = 211064832.

The previous prime is 447661667. The next prime is 447661727. The reversal of 447661696 is 696166744.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213871 + ... + 215953.

It is an arithmetic number, because the mean of its divisors is an integer number (14746905).

Almost surely, 2^447661696 is an apocalyptic number.

447661696 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 447661696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (471900960).

447661696 is an abundant number, since it is smaller than the sum of its proper divisors (496140224).

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

447661696 is a wasteful number, since it uses less digits than its factorization.

447661696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193 (or 2181 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 49.

The square root of 447661696 is about 21158.0172984143. The cubic root of 447661696 is about 764.9798197647.

The spelling of 447661696 in words is "four hundred forty-seven million, six hundred sixty-one thousand, six hundred ninety-six".