916564 has 24 divisors (see below), whose sum is σ = 1800288. Its totient is φ = 404640.

The previous prime is 916561. The next prime is 916571. The reversal of 916564 is 465619.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1347 + ... + 1909.

It is an arithmetic number, because the mean of its divisors is an integer number (75012).

2⁹¹⁶⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

916564 is a deficient number, since it is larger than the sum of its proper divisors (883724).

916564 is a wasteful number, since it uses less digits than its factorization.

916564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615 (or 613 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 916564 is about 957.3734903370. The cubic root of 916564 is about 97.1376513111.

It can be divided in two parts, 9165 and 64, that added together give a palindrome (9229).

The spelling of 916564 in words is "nine hundred sixteen thousand, five hundred sixty-four".