613564 has 24 divisors (see below), whose sum is σ = 1300320. Its totient is φ = 247296.

The previous prime is 613559. The next prime is 613573. The reversal of 613564 is 465316.

It is a plaindrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169 + ... + 1120.

It is an arithmetic number, because the mean of its divisors is an integer number (54180).

2⁶¹³⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

613564 is an abundant number, since it is smaller than the sum of its proper divisors (686756).

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

613564 is a wasteful number, since it uses less digits than its factorization.

613564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317 (or 1315 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 613564 is about 783.3032618341. The cubic root of 613564 is about 84.9741097619.

The spelling of 613564 in words is "six hundred thirteen thousand, five hundred sixty-four".