478015 has 4 divisors (see below), whose sum is σ = 573624. Its totient is φ = 382408.

The previous prime is 478001. The next prime is 478039. The reversal of 478015 is 510874.

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

It is a cyclic number.

It is not a de Polignac number, because 478015 - 2¹³ = 469823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47797 + ... + 47806.

It is an arithmetic number, because the mean of its divisors is an integer number (143406).

2⁴⁷⁸⁰¹⁵ is an apocalyptic number.

478015 is a deficient number, since it is larger than the sum of its proper divisors (95609).

478015 is an equidigital number, since it uses as much as digits as its factorization.

478015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95608.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 478015 is about 691.3862885537. The cubic root of 478015 is about 78.1892729752.

Adding to 478015 its reverse (510874), we get a palindrome (988889).

The spelling of 478015 in words is "four hundred seventy-eight thousand, fifteen".