653564 has 12 divisors (see below), whose sum is σ = 1155000. Its totient is φ = 323568.

The previous prime is 653563. The next prime is 653579. The reversal of 653564 is 465356.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 653564.

It is not an unprimeable number, because it can be changed into a prime (653561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314 + ... + 1185.

It is an arithmetic number, because the mean of its divisors is an integer number (96250).

2⁶⁵³⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

653564 is a deficient number, since it is larger than the sum of its proper divisors (501436).

653564 is a wasteful number, since it uses less digits than its factorization.

653564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612 (or 1610 counting only the distinct ones).

The product of its digits is 10800, while the sum is 29.

The square root of 653564 is about 808.4330522684. The cubic root of 653564 is about 86.7819439036.

The spelling of 653564 in words is "six hundred fifty-three thousand, five hundred sixty-four".