2086563 has 16 divisors (see below), whose sum is σ = 2975616. Its totient is φ = 1296000.

The previous prime is 2086549. The next prime is 2086571. The reversal of 2086563 is 3656802.

It is not a de Polignac number, because 2086563 - 2⁴ = 2086547 is a prime.

2086563 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2086563.

It is not an unprimeable number, because it can be changed into a prime (2086543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8188 + ... + 8438.

It is an arithmetic number, because the mean of its divisors is an integer number (185976).

2^2086563 is an apocalyptic number.

2086563 is a deficient number, since it is larger than the sum of its proper divisors (889053).

2086563 is a wasteful number, since it uses less digits than its factorization.

2086563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2086563 is about 1444.4940290635. The cubic root of 2086563 is about 127.7842026315.

The spelling of 2086563 in words is "two million, eighty-six thousand, five hundred sixty-three".