478117 has 4 divisors (see below), whose sum is σ = 489280. Its totient is φ = 466956.

The previous prime is 478111. The next prime is 478129. The reversal of 478117 is 711874.

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, and also an emirpimes, since its reverse is a distinct semiprime: 711874 = 2 ⋅355937.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478117 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 (478111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5517 + ... + 5602.

It is an arithmetic number, because the mean of its divisors is an integer number (122320).

2⁴⁷⁸¹¹⁷ is an apocalyptic number.

It is an amenable number.

478117 is a deficient number, since it is larger than the sum of its proper divisors (11163).

478117 is a wasteful number, since it uses less digits than its factorization.

478117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11162.

The product of its digits is 1568, while the sum is 28.

The square root of 478117 is about 691.4600494606. The cubic root of 478117 is about 78.1948339852.

It can be divided in two parts, 478 and 117, that added together give a palindrome (595).

The spelling of 478117 in words is "four hundred seventy-eight thousand, one hundred seventeen".