447817085 has 4 divisors (see below), whose sum is σ = 537380508. Its totient is φ = 358253664.

The previous prime is 447817067. The next prime is 447817127. The reversal of 447817085 is 580718744.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 259660996 + 188156089 = 16114^2 + 13717^2 .

It is a cyclic number.

It is not a de Polignac number, because 447817085 - 2⁸ = 447816829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44781704 + ... + 44781713.

It is an arithmetic number, because the mean of its divisors is an integer number (134345127).

Almost surely, 2^447817085 is an apocalyptic number.

It is an amenable number.

447817085 is a deficient number, since it is larger than the sum of its proper divisors (89563423).

447817085 is an equidigital number, since it uses as much as digits as its factorization.

447817085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89563422.

The product of its (nonzero) digits is 250880, while the sum is 44.

The square root of 447817085 is about 21161.6890866490. The cubic root of 447817085 is about 765.0683208949.

The spelling of 447817085 in words is "four hundred forty-seven million, eight hundred seventeen thousand, eighty-five".