2086686 has 24 divisors (see below), whose sum is σ = 5167344. Its totient is φ = 596160.

The previous prime is 2086681. The next prime is 2086697. The reversal of 2086686 is 6866802.

It is a self number, because there is not a number n which added to its sum of digits gives 2086686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2086681) 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, 8155 + ... + 8406.

It is an arithmetic number, because the mean of its divisors is an integer number (215306).

2^2086686 is an apocalyptic number.

2086686 is an abundant number, since it is smaller than the sum of its proper divisors (3080658).

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

2086686 is a wasteful number, since it uses less digits than its factorization.

2086686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16576 (or 16573 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 2086686 is about 1444.5366038976. The cubic root of 2086686 is about 127.7867134828.

It can be divided in two parts, 2086 and 686, that added together give a palindrome (2772).

The spelling of 2086686 in words is "two million, eighty-six thousand, six hundred eighty-six".