8478478 has 8 divisors (see below), whose sum is σ = 13465872. Its totient is φ = 3989856.

The previous prime is 8478433. The next prime is 8478493. The reversal of 8478478 is 8748748.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 124650 + ... + 124717.

It is an arithmetic number, because the mean of its divisors is an integer number (1683234).

Almost surely, 2^8478478 is an apocalyptic number.

8478478 is a deficient number, since it is larger than the sum of its proper divisors (4987394).

8478478 is a wasteful number, since it uses less digits than its factorization.

8478478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249386.

The product of its digits is 401408, while the sum is 46.

The square root of 8478478 is about 2911.7826155124. The cubic root of 8478478 is about 203.9103636702.

The spelling of 8478478 in words is "eight million, four hundred seventy-eight thousand, four hundred seventy-eight".