4478669 has 6 divisors (see below), whose sum is σ = 4849866. Its totient is φ = 4134000.

The previous prime is 4478657. The next prime is 4478671. The reversal of 4478669 is 9668744.

It can be written as a sum of positive squares in 3 ways, for example, as 26569 + 4452100 = 163^2 + 2110^2 .

It is not a de Polignac number, because 4478669 - 2⁴ = 4478653 is a prime.

It is a super-2 number, since 2×4478669² = 40116952023122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4478069) 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 5 ways as a sum of consecutive naturals, for example, 13082 + ... + 13419.

It is an arithmetic number, because the mean of its divisors is an integer number (808311).

Almost surely, 2^4478669 is an apocalyptic number.

It is an amenable number.

4478669 is a deficient number, since it is larger than the sum of its proper divisors (371197).

4478669 is a wasteful number, since it uses less digits than its factorization.

4478669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26527 (or 26514 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 4478669 is about 2116.2866062989. The cubic root of 4478669 is about 164.8350846886.

The spelling of 4478669 in words is "four million, four hundred seventy-eight thousand, six hundred sixty-nine".