478979 has 4 divisors (see below), whose sum is σ = 480480. Its totient is φ = 477480.

The previous prime is 478967. The next prime is 478991. The reversal of 478979 is 979874.

478979 is nontrivially palindromic in base 7.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (478967) and next prime (478991).

It is a cyclic number.

It is not a de Polignac number, because 478979 - 2⁴ = 478963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478999) 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, 59 + ... + 980.

It is an arithmetic number, because the mean of its divisors is an integer number (120120).

2⁴⁷⁸⁹⁷⁹ is an apocalyptic number.

478979 is a deficient number, since it is larger than the sum of its proper divisors (1501).

478979 is a wasteful number, since it uses less digits than its factorization.

478979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500.

The product of its digits is 127008, while the sum is 44.

The square root of 478979 is about 692.0830874974. The cubic root of 478979 is about 78.2417984170.

The spelling of 478979 in words is "four hundred seventy-eight thousand, nine hundred seventy-nine".