2099563 has 4 divisors (see below), whose sum is σ = 2108808. Its totient is φ = 2090320.

The previous prime is 2099549. The next prime is 2099593. The reversal of 2099563 is 3659902.

It is a happy number.

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 2099563 - 2²¹ = 2411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2099543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4273 + ... + 4738.

It is an arithmetic number, because the mean of its divisors is an integer number (527202).

2^2099563 is an apocalyptic number.

2099563 is a deficient number, since it is larger than the sum of its proper divisors (9245).

2099563 is an equidigital number, since it uses as much as digits as its factorization.

2099563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9244.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 2099563 is about 1448.9868874493. The cubic root of 2099563 is about 128.0490331350.

It can be divided in two parts, 2099 and 563, that added together give a palindrome (2662).

The spelling of 2099563 in words is "two million, ninety-nine thousand, five hundred sixty-three".