478547646 has 8 divisors (see below), whose sum is σ = 957095304. Its totient is φ = 159515880.

The previous prime is 478547599. The next prime is 478547669. The reversal of 478547646 is 646745874.

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

478547646 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39878965 + ... + 39878976.

It is an arithmetic number, because the mean of its divisors is an integer number (119636913).

Almost surely, 2^478547646 is an apocalyptic number.

478547646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

478547646 is a wasteful number, since it uses less digits than its factorization.

478547646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79757946.

The product of its digits is 4515840, while the sum is 51.

The square root of 478547646 is about 21875.7318963275. The cubic root of 478547646 is about 782.1830396379.

The spelling of 478547646 in words is "four hundred seventy-eight million, five hundred forty-seven thousand, six hundred forty-six".