478717 has 4 divisors (see below), whose sum is σ = 480960. Its totient is φ = 476476.

The previous prime is 478711. The next prime is 478727. The reversal of 478717 is 717874.

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 478717 - 2⁷ = 478589 is a prime.

It is a Duffinian number.

478717 is a modest number, since divided by 717 gives 478 as remainder.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478711) 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, 763 + ... + 1240.

It is an arithmetic number, because the mean of its divisors is an integer number (120240).

2⁴⁷⁸⁷¹⁷ is an apocalyptic number.

It is an amenable number.

478717 is a deficient number, since it is larger than the sum of its proper divisors (2243).

478717 is a wasteful number, since it uses less digits than its factorization.

478717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2242.

The product of its digits is 10976, while the sum is 34.

The square root of 478717 is about 691.8937779746. The cubic root of 478717 is about 78.2275298096.

The spelling of 478717 in words is "four hundred seventy-eight thousand, seven hundred seventeen".