8478406 has 8 divisors (see below), whose sum is σ = 12733560. Its totient is φ = 4233888.

The previous prime is 8478391. The next prime is 8478433. The reversal of 8478406 is 6048748.

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, 216 + ... + 4123.

It is an arithmetic number, because the mean of its divisors is an integer number (1591695).

Almost surely, 2^8478406 is an apocalyptic number.

8478406 is a deficient number, since it is larger than the sum of its proper divisors (4255154).

8478406 is a wasteful number, since it uses less digits than its factorization.

8478406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5318.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 8478406 is about 2911.7702519258. The cubic root of 8478406 is about 203.9097864602.

The spelling of 8478406 in words is "eight million, four hundred seventy-eight thousand, four hundred six".