470309 has 4 divisors (see below), whose sum is σ = 537504. Its totient is φ = 403116.

The previous prime is 470303. The next prime is 470317. The reversal of 470309 is 903074.

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 not a de Polignac number, because 470309 - 2¹⁶ = 404773 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 470309.

It is not an unprimeable number, because it can be changed into a prime (470303) 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, 33587 + ... + 33600.

It is an arithmetic number, because the mean of its divisors is an integer number (134376).

2⁴⁷⁰³⁰⁹ is an apocalyptic number.

It is an amenable number.

470309 is a deficient number, since it is larger than the sum of its proper divisors (67195).

470309 is an equidigital number, since it uses as much as digits as its factorization.

470309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67194.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 470309 is about 685.7907844234. The cubic root of 470309 is about 77.7668360269.

The spelling of 470309 in words is "four hundred seventy thousand, three hundred nine".