2099863 has 2 divisors, whose sum is σ = 2099864. Its totient is φ = 2099862.

The previous prime is 2099837. The next prime is 2099887. The reversal of 2099863 is 3689902.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2099863 - 2¹³ = 2091671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2099893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1049931 + 1049932.

It is an arithmetic number, because the mean of its divisors is an integer number (1049932).

2^2099863 is an apocalyptic number.

2099863 is a deficient number, since it is larger than the sum of its proper divisors (1).

2099863 is an equidigital number, since it uses as much as digits as its factorization.

2099863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 2099863 is about 1449.0904043572. The cubic root of 2099863 is about 128.0551316867.

The spelling of 2099863 in words is "two million, ninety-nine thousand, eight hundred sixty-three".