478279 has 4 divisors (see below), whose sum is σ = 479776. Its totient is φ = 476784.

The previous prime is 478273. The next prime is 478321. The reversal of 478279 is 972874.

It is a happy number.

478279 is nontrivially palindromic in base 16.

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 478279 - 2³ = 478271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478271) 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, 54 + ... + 979.

It is an arithmetic number, because the mean of its divisors is an integer number (119944).

2⁴⁷⁸²⁷⁹ is an apocalyptic number.

478279 is a deficient number, since it is larger than the sum of its proper divisors (1497).

478279 is a wasteful number, since it uses less digits than its factorization.

478279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496.

The product of its digits is 28224, while the sum is 37.

The square root of 478279 is about 691.5771829666. The cubic root of 478279 is about 78.2036645523.

It can be divided in two parts, 478 and 279, that added together give a palindrome (757).

The spelling of 478279 in words is "four hundred seventy-eight thousand, two hundred seventy-nine".