478438863 has 8 divisors (see below), whose sum is σ = 729049728. Its totient is φ = 273393624.

The previous prime is 478438859. The next prime is 478438889. The reversal of 478438863 is 368834874.

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

It is not a de Polignac number, because 478438863 - 2² = 478438859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478438843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11391381 + ... + 11391422.

It is an arithmetic number, because the mean of its divisors is an integer number (91131216).

Almost surely, 2^478438863 is an apocalyptic number.

478438863 is a deficient number, since it is larger than the sum of its proper divisors (250610865).

478438863 is a wasteful number, since it uses less digits than its factorization.

478438863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22782813.

The product of its digits is 3096576, while the sum is 51.

The square root of 478438863 is about 21873.2453696291. The cubic root of 478438863 is about 782.1237667759.

The spelling of 478438863 in words is "four hundred seventy-eight million, four hundred thirty-eight thousand, eight hundred sixty-three".