479818209 has 32 divisors (see below), whose sum is σ = 709582720. Its totient is φ = 288235584.

The previous prime is 479818193. The next prime is 479818223. The reversal of 479818209 is 902818974.

It is not a de Polignac number, because 479818209 - 2⁴ = 479818193 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (479818309) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 282567 + ... + 284259.

It is an arithmetic number, because the mean of its divisors is an integer number (22174460).

Almost surely, 2^479818209 is an apocalyptic number.

It is an amenable number.

479818209 is a deficient number, since it is larger than the sum of its proper divisors (229764511).

479818209 is a wasteful number, since it uses less digits than its factorization.

479818209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778 (or 1752 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 479818209 is about 21904.7531143357. The cubic root of 479818209 is about 782.8746702382.

The spelling of 479818209 in words is "four hundred seventy-nine million, eight hundred eighteen thousand, two hundred nine".