478745 has 12 divisors (see below), whose sum is σ = 603876. Its totient is φ = 364320.

The previous prime is 478741. The next prime is 478747. The reversal of 478745 is 547874.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 64009 + 414736 = 253^2 + 644^2 .

It is not a de Polignac number, because 478745 - 2² = 478741 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478741) 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, 2555 + ... + 2735.

It is an arithmetic number, because the mean of its divisors is an integer number (50323).

2⁴⁷⁸⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

478745 is a deficient number, since it is larger than the sum of its proper divisors (125131).

478745 is a wasteful number, since it uses less digits than its factorization.

478745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 209 counting only the distinct ones).

The product of its digits is 31360, while the sum is 35.

The square root of 478745 is about 691.9140119986. The cubic root of 478745 is about 78.2290549473.

The spelling of 478745 in words is "four hundred seventy-eight thousand, seven hundred forty-five".