478563983 has 4 divisors (see below), whose sum is σ = 485119728. Its totient is φ = 472008240.

The previous prime is 478563959. The next prime is 478563989. The reversal of 478563983 is 389365874.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 478563983 - 2¹⁴ = 478547599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478563989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3277763 + ... + 3277908.

It is an arithmetic number, because the mean of its divisors is an integer number (121279932).

Almost surely, 2^478563983 is an apocalyptic number.

478563983 is a deficient number, since it is larger than the sum of its proper divisors (6555745).

478563983 is an equidigital number, since it uses as much as digits as its factorization.

478563983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6555744.

The product of its digits is 4354560, while the sum is 53.

The square root of 478563983 is about 21876.1052977901. The cubic root of 478563983 is about 782.1919404437.

The spelling of 478563983 in words is "four hundred seventy-eight million, five hundred sixty-three thousand, nine hundred eighty-three".