4320565 has 16 divisors (see below), whose sum is σ = 5443200. Its totient is φ = 3287872.

The previous prime is 4320559. The next prime is 4320571. The reversal of 4320565 is 5650234.

It is an interprime number because it is at equal distance from previous prime (4320559) and next prime (4320571).

It is a cyclic number.

It is not a de Polignac number, because 4320565 - 2¹⁹ = 3796277 is a prime.

It is a d-powerful number, because it can be written as 4⁹ + 3⁵ + 2²¹ + 0 + 5³ + 6⁵ + 5⁹ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11856 + ... + 12214.

It is an arithmetic number, because the mean of its divisors is an integer number (340200).

Almost surely, 2^4320565 is an apocalyptic number.

It is an amenable number.

4320565 is a deficient number, since it is larger than the sum of its proper divisors (1122635).

4320565 is a wasteful number, since it uses less digits than its factorization.

4320565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 4320565 is about 2078.5968825147. The cubic root of 4320565 is about 162.8721568989.

Adding to 4320565 its reverse (5650234), we get a palindrome (9970799).

The spelling of 4320565 in words is "four million, three hundred twenty thousand, five hundred sixty-five".