464509 has 4 divisors (see below), whose sum is σ = 466816. Its totient is φ = 462204.

The previous prime is 464483. The next prime is 464521. The reversal of 464509 is 905464.

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 464509 - 2⁷ = 464381 is a prime.

It is a super-2 number, since 2×464509² = 431537222162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464539) 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, 819 + ... + 1264.

It is an arithmetic number, because the mean of its divisors is an integer number (116704).

2⁴⁶⁴⁵⁰⁹ is an apocalyptic number.

It is an amenable number.

464509 is a deficient number, since it is larger than the sum of its proper divisors (2307).

464509 is a wasteful number, since it uses less digits than its factorization.

464509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 464509 is about 681.5489710945. The cubic root of 464509 is about 77.4458310338.

The spelling of 464509 in words is "four hundred sixty-four thousand, five hundred nine".