4928209 has 18 divisors (see below), whose sum is σ = 5890038. Its totient is φ = 4118400.

The previous prime is 4928207. The next prime is 4928213. The reversal of 4928209 is 9028294.

It can be written as a sum of positive squares in 3 ways, for example, as 88209 + 4840000 = 297^2 + 2200^2 .

It is not a de Polignac number, because 4928209 - 2¹ = 4928207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4928207) 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 17 ways as a sum of consecutive naturals, for example, 20329 + ... + 20569.

Almost surely, 2^4928209 is an apocalyptic number.

It is an amenable number.

4928209 is a deficient number, since it is larger than the sum of its proper divisors (961829).

4928209 is a wasteful number, since it uses less digits than its factorization.

4928209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 4928209 is about 2219.9569815652. The cubic root of 4928209 is about 170.1752402877.

The spelling of 4928209 in words is "four million, nine hundred twenty-eight thousand, two hundred nine".