3240865 has 4 divisors (see below), whose sum is σ = 3889044. Its totient is φ = 2592688.

The previous prime is 3240851. The next prime is 3240877. The reversal of 3240865 is 5680423.

3240865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2396304 + 844561 = 1548^2 + 919^2 .

It is a cyclic number.

It is not a de Polignac number, because 3240865 - 2⁷ = 3240737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324082 + ... + 324091.

It is an arithmetic number, because the mean of its divisors is an integer number (972261).

Almost surely, 2^3240865 is an apocalyptic number.

It is an amenable number.

3240865 is a deficient number, since it is larger than the sum of its proper divisors (648179).

3240865 is an equidigital number, since it uses as much as digits as its factorization.

3240865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648178.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 3240865 is about 1800.2402617429. The cubic root of 3240865 is about 147.9858916427.

The spelling of 3240865 in words is "three million, two hundred forty thousand, eight hundred sixty-five".