473209 has 4 divisors (see below), whose sum is σ = 516240. Its totient is φ = 430180.

The previous prime is 473203. The next prime is 473219. The reversal of 473209 is 902374.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 473209 - 2³ = 473201 is a prime.

It is a Duffinian number.

473209 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (473201) 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 3 ways as a sum of consecutive naturals, for example, 21499 + ... + 21520.

It is an arithmetic number, because the mean of its divisors is an integer number (129060).

2⁴⁷³²⁰⁹ is an apocalyptic number.

It is an amenable number.

473209 is a deficient number, since it is larger than the sum of its proper divisors (43031).

473209 is a wasteful number, since it uses less digits than its factorization.

473209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43030.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 473209 is about 687.9018825385. The cubic root of 473209 is about 77.9263495009.

Adding to 473209 its product of nonzero digits (1512), we get a square (474721 = 689²).

The spelling of 473209 in words is "four hundred seventy-three thousand, two hundred nine".