479209 has 2 divisors, whose sum is σ = 479210. Its totient is φ = 479208.

The previous prime is 479201. The next prime is 479221. The reversal of 479209 is 902974.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 363609 + 115600 = 603^2 + 340^2 .

It is a cyclic number.

It is not a de Polignac number, because 479209 - 2³ = 479201 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (479201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239604 + 239605.

It is an arithmetic number, because the mean of its divisors is an integer number (239605).

2⁴⁷⁹²⁰⁹ is an apocalyptic number.

It is an amenable number.

479209 is a deficient number, since it is larger than the sum of its proper divisors (1).

479209 is an equidigital number, since it uses as much as digits as its factorization.

479209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 479209 is about 692.2492325745. The cubic root of 479209 is about 78.2543200057.

The spelling of 479209 in words is "four hundred seventy-nine thousand, two hundred nine".