478336817 has 8 divisors (see below), whose sum is σ = 565521600. Its totient is φ = 395864784.

The previous prime is 478336801. The next prime is 478336823. The reversal of 478336817 is 718633874.

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

It is not a de Polignac number, because 478336817 - 2⁴ = 478336801 is a prime.

It is a super-2 number, since 2×478336817² = 457612220995382978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (478336847) 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, 1177967 + ... + 1178372.

It is an arithmetic number, because the mean of its divisors is an integer number (70690200).

Almost surely, 2^478336817 is an apocalyptic number.

It is an amenable number.

478336817 is a deficient number, since it is larger than the sum of its proper divisors (87184783).

478336817 is a wasteful number, since it uses less digits than its factorization.

478336817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2356375.

The product of its digits is 677376, while the sum is 47.

The square root of 478336817 is about 21870.9125781253. The cubic root of 478336817 is about 782.0681565519.

The spelling of 478336817 in words is "four hundred seventy-eight million, three hundred thirty-six thousand, eight hundred seventeen".