465609 has 4 divisors (see below), whose sum is σ = 620816. Its totient is φ = 310404.

The previous prime is 465587. The next prime is 465611. The reversal of 465609 is 906564.

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 de Polignac number, because none of the positive numbers 2^k-465609 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (465649) 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, 77599 + ... + 77604.

It is an arithmetic number, because the mean of its divisors is an integer number (155204).

2⁴⁶⁵⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

465609 is a deficient number, since it is larger than the sum of its proper divisors (155207).

465609 is a wasteful number, since it uses less digits than its factorization.

465609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155206.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 465609 is about 682.3554792042. The cubic root of 465609 is about 77.5069157894.

The spelling of 465609 in words is "four hundred sixty-five thousand, six hundred nine".