478847 has 4 divisors (see below), whose sum is σ = 483600. Its totient is φ = 474096.

The previous prime is 478843. The next prime is 478853. The reversal of 478847 is 748874.

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 478847 - 2² = 478843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 478847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2222 + ... + 2427.

It is an arithmetic number, because the mean of its divisors is an integer number (120900).

2⁴⁷⁸⁸⁴⁷ is an apocalyptic number.

478847 is a deficient number, since it is larger than the sum of its proper divisors (4753).

478847 is a wasteful number, since it uses less digits than its factorization.

478847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4752.

The product of its digits is 50176, while the sum is 38.

The square root of 478847 is about 691.9877166540. The cubic root of 478847 is about 78.2346103035.

The spelling of 478847 in words is "four hundred seventy-eight thousand, eight hundred forty-seven".