470909 has 4 divisors (see below), whose sum is σ = 472416. Its totient is φ = 469404.

The previous prime is 470903. The next prime is 470927. The reversal of 470909 is 909074.

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 470909 - 2⁸ = 470653 is a prime.

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

It is a Duffinian number.

470909 is a modest number, since divided by 909 gives 47 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (470903) 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, 89 + ... + 974.

It is an arithmetic number, because the mean of its divisors is an integer number (118104).

2⁴⁷⁰⁹⁰⁹ is an apocalyptic number.

It is an amenable number.

470909 is a deficient number, since it is larger than the sum of its proper divisors (1507).

470909 is a wasteful number, since it uses less digits than its factorization.

470909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 470909 is about 686.2280961896. The cubic root of 470909 is about 77.7998925021.

The spelling of 470909 in words is "four hundred seventy thousand, nine hundred nine".