478473863 has 4 divisors (see below), whose sum is σ = 546827280. Its totient is φ = 410120448.

The previous prime is 478473847. The next prime is 478473881. The reversal of 478473863 is 368374874.

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 478473863 - 2⁴ = 478473847 is a prime.

It is a super-3 number, since 3×478473863³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478473833) 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, 34176698 + ... + 34176711.

It is an arithmetic number, because the mean of its divisors is an integer number (136706820).

Almost surely, 2^478473863 is an apocalyptic number.

478473863 is a deficient number, since it is larger than the sum of its proper divisors (68353417).

478473863 is an equidigital number, since it uses as much as digits as its factorization.

478473863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68353416.

The product of its digits is 2709504, while the sum is 50.

The square root of 478473863 is about 21874.0454191720. The cubic root of 478473863 is about 782.1428382926.

The spelling of 478473863 in words is "four hundred seventy-eight million, four hundred seventy-three thousand, eight hundred sixty-three".