470905 has 8 divisors (see below), whose sum is σ = 576072. Its totient is φ = 369408.

The previous prime is 470903. The next prime is 470927. The reversal of 470905 is 509074.

It can be written as a sum of positive squares in 4 ways, for example, as 85264 + 385641 = 292^2 + 621^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 470905 - 2¹ = 470903 is a prime.

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

It is a Duffinian number.

470905 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 470905.

It is not an unprimeable number, because it can be changed into a prime (470903) 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 in 7 ways as a sum of consecutive naturals, for example, 624 + ... + 1153.

It is an arithmetic number, because the mean of its divisors is an integer number (72009).

2⁴⁷⁰⁹⁰⁵ is an apocalyptic number.

It is an amenable number.

470905 is a deficient number, since it is larger than the sum of its proper divisors (105167).

470905 is a wasteful number, since it uses less digits than its factorization.

470905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 470905 is about 686.2251817006. The cubic root of 470905 is about 77.7996722186.

Adding to 470905 its reverse (509074), we get a palindrome (979979).

The spelling of 470905 in words is "four hundred seventy thousand, nine hundred five".