4478889 has 8 divisors (see below), whose sum is σ = 6286240. Its totient is φ = 2828736.

The previous prime is 4478879. The next prime is 4478891. The reversal of 4478889 is 9888744.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4478889 - 2⁵ = 4478857 is a prime.

It is a Duffinian number.

4478889 is a lucky number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (4478809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39232 + ... + 39345.

It is an arithmetic number, because the mean of its divisors is an integer number (785780).

Almost surely, 2^4478889 is an apocalyptic number.

It is an amenable number.

4478889 is a deficient number, since it is larger than the sum of its proper divisors (1807351).

4478889 is a wasteful number, since it uses less digits than its factorization.

4478889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78599.

The product of its digits is 516096, while the sum is 48.

The square root of 4478889 is about 2116.3385834975. The cubic root of 4478889 is about 164.8377836396.

The spelling of 4478889 in words is "four million, four hundred seventy-eight thousand, eight hundred eighty-nine".