447306885 has 24 divisors (see below), whose sum is σ = 777164544. Its totient is φ = 237999840.

The previous prime is 447306883. The next prime is 447306889. The reversal of 447306885 is 588603744.

It is not a de Polignac number, because 447306885 - 2¹ = 447306883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 447306885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447306883) 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, 7864 + ... + 30926.

It is an arithmetic number, because the mean of its divisors is an integer number (32381856).

Almost surely, 2^447306885 is an apocalyptic number.

447306885 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

447306885 is a deficient number, since it is larger than the sum of its proper divisors (329857659).

447306885 is a wasteful number, since it uses less digits than its factorization.

447306885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23505 (or 23502 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 447306885 is about 21149.6308478422. The cubic root of 447306885 is about 764.7776619018. Note that the first 3 decimals are identical.

It can be divided in two parts, 44730 and 6885, that added together give a palindrome (51615).

The spelling of 447306885 in words is "four hundred forty-seven million, three hundred six thousand, eight hundred eighty-five".