481609 has 4 divisors (see below), whose sum is σ = 491904. Its totient is φ = 471316.

The previous prime is 481589. The next prime is 481619. The reversal of 481609 is 906184.

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 481609 - 2⁵ = 481577 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (481619) 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, 5077 + ... + 5170.

It is an arithmetic number, because the mean of its divisors is an integer number (122976).

2⁴⁸¹⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

481609 is a deficient number, since it is larger than the sum of its proper divisors (10295).

481609 is a wasteful number, since it uses less digits than its factorization.

481609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10294.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 481609 is about 693.9805472778. The cubic root of 481609 is about 78.3847416682.

The spelling of 481609 in words is "four hundred eighty-one thousand, six hundred nine".