563465 has 16 divisors (see below), whose sum is σ = 819072. Its totient is φ = 363264.

The previous prime is 563449. The next prime is 563467. The reversal of 563465 is 564365.

563465 = T₇₀ + T₇₁ + ... + T₁₅₄.

It is a cyclic number.

It is not a de Polignac number, because 563465 - 2⁴ = 563449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (563467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122 + ... + 1068.

It is an arithmetic number, because the mean of its divisors is an integer number (51192).

2⁵⁶³⁴⁶⁵ is an apocalyptic number.

It is an amenable number.

563465 is a deficient number, since it is larger than the sum of its proper divisors (255607).

563465 is a wasteful number, since it uses less digits than its factorization.

563465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976.

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

The square root of 563465 is about 750.6430576512. The cubic root of 563465 is about 82.5953595839.

Subtracting 563465 from its reverse (564365), we obtain a square (900 = 30²).

The spelling of 563465 in words is "five hundred sixty-three thousand, four hundred sixty-five".