478134317 has 4 divisors (see below), whose sum is σ = 478204896. Its totient is φ = 478063740.

The previous prime is 478134233. The next prime is 478134353. The reversal of 478134317 is 713431874.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 478134317 - 2²² = 473940013 is a prime.

It is a super-2 number, since 2×478134317² = 457224850186112978, which contains 22 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 (478134817) 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, 23903 + ... + 39084.

It is an arithmetic number, because the mean of its divisors is an integer number (119551224).

Almost surely, 2^478134317 is an apocalyptic number.

It is an amenable number.

478134317 is a deficient number, since it is larger than the sum of its proper divisors (70579).

478134317 is an equidigital number, since it uses as much as digits as its factorization.

478134317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70578.

The product of its digits is 56448, while the sum is 38.

The square root of 478134317 is about 21866.2826516077. The cubic root of 478134317 is about 781.9577802443.

The spelling of 478134317 in words is "four hundred seventy-eight million, one hundred thirty-four thousand, three hundred seventeen".