447287853 has 4 divisors (see below), whose sum is σ = 596383808. Its totient is φ = 298191900.

The previous prime is 447287839. The next prime is 447287891. The reversal of 447287853 is 358782744.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 447287853 - 2⁸ = 447287597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447287653) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 74547973 + ... + 74547978.

It is an arithmetic number, because the mean of its divisors is an integer number (149095952).

Almost surely, 2^447287853 is an apocalyptic number.

It is an amenable number.

447287853 is a deficient number, since it is larger than the sum of its proper divisors (149095955).

447287853 is a wasteful number, since it uses less digits than its factorization.

447287853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149095954.

The product of its digits is 1505280, while the sum is 48.

The square root of 447287853 is about 21149.1809061249. The cubic root of 447287853 is about 764.7668151689.

The spelling of 447287853 in words is "four hundred forty-seven million, two hundred eighty-seven thousand, eight hundred fifty-three".