2089806 has 16 divisors (see below), whose sum is σ = 4195200. Its totient is φ = 694008.

The previous prime is 2089781. The next prime is 2089807. The reversal of 2089806 is 6089802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2089807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1815 + ... + 2733.

It is an arithmetic number, because the mean of its divisors is an integer number (262200).

2^2089806 is an apocalyptic number.

2089806 is an abundant number, since it is smaller than the sum of its proper divisors (2105394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2089806 is a wasteful number, since it uses less digits than its factorization.

2089806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 2089806 is about 1445.6161316200. The cubic root of 2089806 is about 127.8503704014.

The spelling of 2089806 in words is "two million, eighty-nine thousand, eight hundred six".