2089863 has 6 divisors (see below), whose sum is σ = 3018704. Its totient is φ = 1393236.

The previous prime is 2089859. The next prime is 2089873. The reversal of 2089863 is 3689802.

It is not a de Polignac number, because 2089863 - 2² = 2089859 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2089853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 116095 + ... + 116112.

2^2089863 is an apocalyptic number.

2089863 is a deficient number, since it is larger than the sum of its proper divisors (928841).

2089863 is a wasteful number, since it uses less digits than its factorization.

2089863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232213 (or 232210 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 2089863 is about 1445.6358462628. The cubic root of 2089863 is about 127.8515327748.

The spelling of 2089863 in words is "two million, eighty-nine thousand, eight hundred sixty-three".