478057 has 8 divisors (see below), whose sum is σ = 515592. Its totient is φ = 441600.

The previous prime is 478039. The next prime is 478063. The reversal of 478057 is 750874.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10201 + 467856 = 101^2 + 684^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 478057 - 2¹¹ = 476009 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 478057.

It is not an unprimeable number, because it can be changed into a prime (478067) 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, 807 + ... + 1267.

It is an arithmetic number, because the mean of its divisors is an integer number (64449).

2⁴⁷⁸⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

478057 is a deficient number, since it is larger than the sum of its proper divisors (37535).

478057 is a wasteful number, since it uses less digits than its factorization.

478057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 478057 is about 691.4166616448. The cubic root of 478057 is about 78.1915628986.

The spelling of 478057 in words is "four hundred seventy-eight thousand, fifty-seven".