1008564 has 12 divisors (see below), whose sum is σ = 2353344. Its totient is φ = 336184.

The previous prime is 1008563. The next prime is 1008571. The reversal of 1008564 is 4658001.

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 (1008563) 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, 42012 + ... + 42035.

It is an arithmetic number, because the mean of its divisors is an integer number (196112).

2^1008564 is an apocalyptic number.

It is an amenable number.

1008564 is an abundant number, since it is smaller than the sum of its proper divisors (1344780).

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

1008564 is a wasteful number, since it uses less digits than its factorization.

1008564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84054 (or 84052 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1008564 is about 1004.2728712855. The cubic root of 1008564 is about 100.2846556097.

The spelling of 1008564 in words is "one million, eight thousand, five hundred sixty-four".