564635 has 4 divisors (see below), whose sum is σ = 677568. Its totient is φ = 451704.

The previous prime is 564617. The next prime is 564643. The reversal of 564635 is 536465.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 564635 - 2¹⁶ = 499099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 564598 and 564607.

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 3 ways as a sum of consecutive naturals, for example, 56459 + ... + 56468.

It is an arithmetic number, because the mean of its divisors is an integer number (169392).

2⁵⁶⁴⁶³⁵ is an apocalyptic number.

564635 is a deficient number, since it is larger than the sum of its proper divisors (112933).

564635 is a wasteful number, since it uses less digits than its factorization.

564635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112932.

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

The square root of 564635 is about 751.4219853052. The cubic root of 564635 is about 82.6524881019.

It can be divided in two parts, 56 and 4635, that multiplied together give a triangular number (259560 = T₇₂₀).

The spelling of 564635 in words is "five hundred sixty-four thousand, six hundred thirty-five".