2089686 has 16 divisors (see below), whose sum is σ = 4292784. Its totient is φ = 677664.

The previous prime is 2089673. The next prime is 2089693. The reversal of 2089686 is 6869802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4485 + ... + 4928.

It is an arithmetic number, because the mean of its divisors is an integer number (268299).

2^2089686 is an apocalyptic number.

2089686 is an abundant number, since it is smaller than the sum of its proper divisors (2203098).

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

2089686 is a wasteful number, since it uses less digits than its factorization.

2089686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9455.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 2089686 is about 1445.5746262300. The cubic root of 2089686 is about 127.8479232303.

It can be divided in two parts, 2089 and 686, that added together give a triangular number (2775 = T₇₄).

The spelling of 2089686 in words is "two million, eighty-nine thousand, six hundred eighty-six".