478641 has 8 divisors (see below), whose sum is σ = 644800. Its totient is φ = 315792.

The previous prime is 478637. The next prime is 478651. The reversal of 478641 is 146874.

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

It is not a de Polignac number, because 478641 - 2² = 478637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 478599 and 478608.

It is not an unprimeable number, because it can be changed into a prime (478631) 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 7 ways as a sum of consecutive naturals, for example, 466 + ... + 1083.

It is an arithmetic number, because the mean of its divisors is an integer number (80600).

2⁴⁷⁸⁶⁴¹ is an apocalyptic number.

It is an amenable number.

478641 is a deficient number, since it is larger than the sum of its proper divisors (166159).

478641 is a wasteful number, since it uses less digits than its factorization.

478641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655.

The product of its digits is 5376, while the sum is 30.

The square root of 478641 is about 691.8388540694. The cubic root of 478641 is about 78.2233898501.

The spelling of 478641 in words is "four hundred seventy-eight thousand, six hundred forty-one".