8478047 has 8 divisors (see below), whose sum is σ = 8966400. Its totient is φ = 7993944.

The previous prime is 8478037. The next prime is 8478049. The reversal of 8478047 is 7408748.

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 8478047 - 2⁴ = 8478031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8478047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8478049) 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, 3608 + ... + 5474.

It is an arithmetic number, because the mean of its divisors is an integer number (1120800).

Almost surely, 2^8478047 is an apocalyptic number.

8478047 is a deficient number, since it is larger than the sum of its proper divisors (488353).

8478047 is a wasteful number, since it uses less digits than its factorization.

8478047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125.

The product of its (nonzero) digits is 50176, while the sum is 38.

The square root of 8478047 is about 2911.7086049260. The cubic root of 8478047 is about 203.9069083781.

The spelling of 8478047 in words is "eight million, four hundred seventy-eight thousand, forty-seven".