1608564 has 12 divisors (see below), whose sum is σ = 3753344. Its totient is φ = 536184.

The previous prime is 1608527. The next prime is 1608569. The reversal of 1608564 is 4658061.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1608569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67012 + ... + 67035.

2^1608564 is an apocalyptic number.

It is an amenable number.

1608564 is an abundant number, since it is smaller than the sum of its proper divisors (2144780).

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

1608564 is a wasteful number, since it uses less digits than its factorization.

1608564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134054 (or 134052 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1608564 is about 1268.2917645400. The cubic root of 1608564 is about 117.1690157157.

The spelling of 1608564 in words is "one million, six hundred eight thousand, five hundred sixty-four".