8478385 has 8 divisors (see below), whose sum is σ = 10198656. Its totient is φ = 6766320.

The previous prime is 8478383. The next prime is 8478391. The reversal of 8478385 is 5838748.

It is a happy number.

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

It is not a de Polignac number, because 8478385 - 2¹ = 8478383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8478383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520 + ... + 4150.

It is an arithmetic number, because the mean of its divisors is an integer number (1274832).

Almost surely, 2^8478385 is an apocalyptic number.

It is an amenable number.

8478385 is a deficient number, since it is larger than the sum of its proper divisors (1720271).

8478385 is a wasteful number, since it uses less digits than its factorization.

8478385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4103.

The product of its digits is 215040, while the sum is 43.

The square root of 8478385 is about 2911.7666458698. The cubic root of 8478385 is about 203.9096181067.

The spelling of 8478385 in words is "eight million, four hundred seventy-eight thousand, three hundred eighty-five".