1065564 has 18 divisors (see below), whose sum is σ = 2693600. Its totient is φ = 355176.

The previous prime is 1065557. The next prime is 1065569. The reversal of 1065564 is 4655601.

It is a happy number.

1065564 is a `hidden beast` number, since 1 + 0 + 655 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1065564² = 2270853276192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14764 + ... + 14835.

2^1065564 is an apocalyptic number.

It is an amenable number.

1065564 is an abundant number, since it is smaller than the sum of its proper divisors (1628036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1065564 is a wasteful number, since it uses less digits than its factorization.

1065564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29609 (or 29604 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1065564 is about 1032.2615947520. The cubic root of 1065564 is about 102.1393711857.

The spelling of 1065564 in words is "one million, sixty-five thousand, five hundred sixty-four".