2089845 has 12 divisors (see below), whose sum is σ = 3622476. Its totient is φ = 1114560.

The previous prime is 2089831. The next prime is 2089847. The reversal of 2089845 is 5489802.

It can be written as a sum of positive squares in 2 ways, for example, as 509796 + 1580049 = 714^2 + 1257^2 .

It is not a de Polignac number, because 2089845 - 2⁶ = 2089781 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2089847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23176 + ... + 23265.

It is an arithmetic number, because the mean of its divisors is an integer number (301873).

2^2089845 is an apocalyptic number.

It is an amenable number.

2089845 is a deficient number, since it is larger than the sum of its proper divisors (1532631).

2089845 is a wasteful number, since it uses less digits than its factorization.

2089845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46452 (or 46449 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 2089845 is about 1445.6296206152. The cubic root of 2089845 is about 127.8511657118.

The spelling of 2089845 in words is "two million, eighty-nine thousand, eight hundred forty-five".