4478979 has 4 divisors (see below), whose sum is σ = 5971976. Its totient is φ = 2985984.

The previous prime is 4478917. The next prime is 4478983. The reversal of 4478979 is 9798744.

It is a happy number.

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

It is not a de Polignac number, because 4478979 - 2¹¹ = 4476931 is a prime.

It is a super-2 number, since 2×4478979² = 40122505764882, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4478989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746494 + ... + 746499.

It is an arithmetic number, because the mean of its divisors is an integer number (1492994).

Almost surely, 2^4478979 is an apocalyptic number.

4478979 is a deficient number, since it is larger than the sum of its proper divisors (1492997).

4478979 is a wasteful number, since it uses less digits than its factorization.

4478979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492996.

The product of its digits is 508032, while the sum is 48.

The square root of 4478979 is about 2116.3598465289. The cubic root of 4478979 is about 164.8388877305.

The spelling of 4478979 in words is "four million, four hundred seventy-eight thousand, nine hundred seventy-nine".