447887685 has 64 divisors (see below), whose sum is σ = 841420800. Its totient is φ = 203353920.

The previous prime is 447887669. The next prime is 447887689. The reversal of 447887685 is 586788744.

It is a happy number.

It is not a de Polignac number, because 447887685 - 2⁴ = 447887669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447887689) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1352970 + ... + 1353300.

It is an arithmetic number, because the mean of its divisors is an integer number (13147200).

Almost surely, 2^447887685 is an apocalyptic number.

It is an amenable number.

447887685 is a deficient number, since it is larger than the sum of its proper divisors (393533115).

447887685 is a wasteful number, since it uses less digits than its factorization.

447887685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623 (or 609 counting only the distinct ones).

The product of its digits is 12042240, while the sum is 57.

The square root of 447887685 is about 21163.3571297183. The cubic root of 447887685 is about 765.1085240545.

The spelling of 447887685 in words is "four hundred forty-seven million, eight hundred eighty-seven thousand, six hundred eighty-five".