478771 has 4 divisors (see below), whose sum is σ = 506952. Its totient is φ = 450592.

The previous prime is 478769. The next prime is 478787. The reversal of 478771 is 177874.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 177874 = 2 ⋅88937.

It is a cyclic number.

It is not a de Polignac number, because 478771 - 2¹ = 478769 is a prime.

It is a Duffinian number.

478771 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (478711) 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, 14065 + ... + 14098.

It is an arithmetic number, because the mean of its divisors is an integer number (126738).

2⁴⁷⁸⁷⁷¹ is an apocalyptic number.

478771 is a deficient number, since it is larger than the sum of its proper divisors (28181).

478771 is a wasteful number, since it uses less digits than its factorization.

478771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28180.

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

The square root of 478771 is about 691.9328002053. The cubic root of 478771 is about 78.2304710935.

The spelling of 478771 in words is "four hundred seventy-eight thousand, seven hundred seventy-one".