478407 has 4 divisors (see below), whose sum is σ = 637880. Its totient is φ = 318936.

The previous prime is 478403. The next prime is 478411. The reversal of 478407 is 704874.

478407 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (478403) and next prime (478411).

It is not a de Polignac number, because 478407 - 2² = 478403 is a prime.

It is a D-number.

It is a Duffinian number.

478407 is strictly pandigital in base 7.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 478407.

It is not an unprimeable number, because it can be changed into a prime (478403) 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, 79732 + ... + 79737.

It is an arithmetic number, because the mean of its divisors is an integer number (159470).

2⁴⁷⁸⁴⁰⁷ is an apocalyptic number.

478407 is a deficient number, since it is larger than the sum of its proper divisors (159473).

478407 is a wasteful number, since it uses less digits than its factorization.

478407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159472.

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 478407 is about 691.6697188688. The cubic root of 478407 is about 78.2106403803.

The spelling of 478407 in words is "four hundred seventy-eight thousand, four hundred seven".