4664565 has 12 divisors (see below), whose sum is σ = 8085324. Its totient is φ = 2487744.

The previous prime is 4664533. The next prime is 4664567. The reversal of 4664565 is 5654664.

It is a happy number.

4664565 is a `hidden beast` number, since 4 + 6 + 645 + 6 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 576081 + 4088484 = 759^2 + 2022^2 .

It is not a de Polignac number, because 4664565 - 2⁵ = 4664533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4664567) 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 11 ways as a sum of consecutive naturals, for example, 51784 + ... + 51873.

It is an arithmetic number, because the mean of its divisors is an integer number (673777).

Almost surely, 2^4664565 is an apocalyptic number.

4664565 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4664565 is a deficient number, since it is larger than the sum of its proper divisors (3420759).

4664565 is a wasteful number, since it uses less digits than its factorization.

4664565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103668 (or 103665 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 4664565 is about 2159.7604033781. The cubic root of 4664565 is about 167.0848410149.

Subtracting 4664565 from its reverse (5654664), we obtain a palindrome (990099).

The spelling of 4664565 in words is "four million, six hundred sixty-four thousand, five hundred sixty-five".