472809 has 8 divisors (see below), whose sum is σ = 634752. Its totient is φ = 313040.

The previous prime is 472799. The next prime is 472817. The reversal of 472809 is 908274.

472809 is nontrivially palindromic in base 15.

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 472809 - 2⁴ = 472793 is a prime.

It is a nialpdrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 472809.

It is not an unprimeable number, because it can be changed into a prime (472859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64 + ... + 974.

It is an arithmetic number, because the mean of its divisors is an integer number (79344).

2⁴⁷²⁸⁰⁹ is an apocalyptic number.

It is an amenable number.

472809 is a deficient number, since it is larger than the sum of its proper divisors (161943).

472809 is a wasteful number, since it uses less digits than its factorization.

472809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 472809 is about 687.6110819351. The cubic root of 472809 is about 77.9043864595.

The spelling of 472809 in words is "four hundred seventy-two thousand, eight hundred nine".