2102686 has 8 divisors (see below), whose sum is σ = 3221280. Its totient is φ = 1028928.

The previous prime is 2102651. The next prime is 2102687. The reversal of 2102686 is 6862012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2102686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11091 + ... + 11278.

It is an arithmetic number, because the mean of its divisors is an integer number (402660).

2^2102686 is an apocalyptic number.

2102686 is a deficient number, since it is larger than the sum of its proper divisors (1118594).

2102686 is a wasteful number, since it uses less digits than its factorization.

2102686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22418.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2102686 is about 1450.0641365126. The cubic root of 2102686 is about 128.1124906288.

Adding to 2102686 its reverse (6862012), we get a palindrome (8964698).

It can be divided in two parts, 21026 and 86, that added together give a palindrome (21112).

The spelling of 2102686 in words is "two million, one hundred two thousand, six hundred eighty-six".