2086784 has 64 divisors (see below), whose sum is σ = 5067360. Its totient is φ = 835584.

The previous prime is 2086781. The next prime is 2086787. The reversal of 2086784 is 4876802.

It is an interprime number because it is at equal distance from previous prime (2086781) and next prime (2086787).

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2086781) 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, 15164 + ... + 15300.

2^2086784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2086784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2533680).

2086784 is an abundant number, since it is smaller than the sum of its proper divisors (2980576).

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

2086784 is a wasteful number, since it uses less digits than its factorization.

2086784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 2086784 is about 1444.5705244120. The cubic root of 2086784 is about 127.7887139278.

The spelling of 2086784 in words is "two million, eighty-six thousand, seven hundred eighty-four".