447357385 has 8 divisors (see below), whose sum is σ = 536960520. Its totient is φ = 357798144.

The previous prime is 447357377. The next prime is 447357389. The reversal of 447357385 is 583753744.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 70492816 + 376864569 = 8396^2 + 19413^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 447357385 - 2³ = 447357377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (447357389) 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 7 ways as a sum of consecutive naturals, for example, 18801 + ... + 35329.

It is an arithmetic number, because the mean of its divisors is an integer number (67120065).

Almost surely, 2^447357385 is an apocalyptic number.

It is an amenable number.

447357385 is a deficient number, since it is larger than the sum of its proper divisors (89603135).

447357385 is a wasteful number, since it uses less digits than its factorization.

447357385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21947.

The product of its digits is 1411200, while the sum is 46.

The square root of 447357385 is about 21150.8246884135. The cubic root of 447357385 is about 764.8064414116.

The spelling of 447357385 in words is "four hundred forty-seven million, three hundred fifty-seven thousand, three hundred eighty-five".