563845 has 8 divisors (see below), whose sum is σ = 706176. Its totient is φ = 431376.

The previous prime is 563837. The next prime is 563851. The reversal of 563845 is 548365.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 563845 - 2³ = 563837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2337 + ... + 2566.

It is an arithmetic number, because the mean of its divisors is an integer number (88272).

2⁵⁶³⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

563845 is a deficient number, since it is larger than the sum of its proper divisors (142331).

563845 is a wasteful number, since it uses less digits than its factorization.

563845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4931.

The product of its digits is 14400, while the sum is 31.

The square root of 563845 is about 750.8961312991. The cubic root of 563845 is about 82.6139228095.

It can be divided in two parts, 5 and 63845, that multiplied together give a square (319225 = 565²).

The spelling of 563845 in words is "five hundred sixty-three thousand, eight hundred forty-five".