472609 has 4 divisors (see below), whose sum is σ = 474516. Its totient is φ = 470704.

The previous prime is 472597. The next prime is 472631. The reversal of 472609 is 906274.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 906274 = 2 ⋅453137.

It can be written as a sum of positive squares in 2 ways, for example, as 384400 + 88209 = 620^2 + 297^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-472609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (472639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514 + ... + 1099.

It is an arithmetic number, because the mean of its divisors is an integer number (118629).

2⁴⁷²⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

472609 is a deficient number, since it is larger than the sum of its proper divisors (1907).

472609 is a wasteful number, since it uses less digits than its factorization.

472609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 472609 is about 687.4656355048. The cubic root of 472609 is about 77.8934002933.

It can be divided in two parts, 472 and 609, that added together give a triangular number (1081 = T₄₆).

The spelling of 472609 in words is "four hundred seventy-two thousand, six hundred nine".