2064565 has 16 divisors (see below), whose sum is σ = 2659392. Its totient is φ = 1533184.

The previous prime is 2064551. The next prime is 2064571. The reversal of 2064565 is 5654602.

It is a cyclic number.

It is not a de Polignac number, because 2064565 - 2⁷ = 2064437 is a prime.

It is a Duffinian number.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 8982 + ... + 9208.

It is an arithmetic number, because the mean of its divisors is an integer number (166212).

2^2064565 is an apocalyptic number.

It is an amenable number.

2064565 is a deficient number, since it is larger than the sum of its proper divisors (594827).

2064565 is a wasteful number, since it uses less digits than its factorization.

2064565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2064565 is about 1436.8594224906. The cubic root of 2064565 is about 127.3335518638. Note that the first 3 decimals are identical.

The spelling of 2064565 in words is "two million, sixty-four thousand, five hundred sixty-five".