2089685 has 12 divisors (see below), whose sum is σ = 2716452. Its totient is φ = 1542528.

The previous prime is 2089673. The next prime is 2089693. The reversal of 2089685 is 5869802.

2089685 = T₆₅ + T₆₆ + ... + T₂₃₃.

It can be written as a sum of positive squares in 6 ways, for example, as 223729 + 1865956 = 473^2 + 1366^2 .

It is not a de Polignac number, because 2089685 - 2⁴ = 2089669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 392 + ... + 2081.

It is an arithmetic number, because the mean of its divisors is an integer number (226371).

2^2089685 is an apocalyptic number.

It is an amenable number.

2089685 is a deficient number, since it is larger than the sum of its proper divisors (626767).

2089685 is a wasteful number, since it uses less digits than its factorization.

2089685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504 (or 2491 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 2089685 is about 1445.5742803467. The cubic root of 2089685 is about 127.8479028368.

The spelling of 2089685 in words is "two million, eighty-nine thousand, six hundred eighty-five".