478881 has 12 divisors (see below), whose sum is σ = 745108. Its totient is φ = 294624.

The previous prime is 478879. The next prime is 478897. The reversal of 478881 is 188874.

It can be written as a sum of positive squares in 2 ways, for example, as 129600 + 349281 = 360^2 + 591^2 .

It is not a de Polignac number, because 478881 - 2¹ = 478879 is a prime.

It is a super-2 number, since 2×478881² = 458654024322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (478801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1930 + ... + 2163.

2⁴⁷⁸⁸⁸¹ is an apocalyptic number.

It is an amenable number.

478881 is a deficient number, since it is larger than the sum of its proper divisors (266227).

478881 is a wasteful number, since it uses less digits than its factorization.

478881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4112 (or 4109 counting only the distinct ones).

The product of its digits is 14336, while the sum is 36.

The square root of 478881 is about 692.0122831280. The cubic root of 478881 is about 78.2364619136.

The spelling of 478881 in words is "four hundred seventy-eight thousand, eight hundred eighty-one".