2101886 has 8 divisors (see below), whose sum is σ = 3160080. Its totient is φ = 1048528.

The previous prime is 2101873. The next prime is 2101903. The reversal of 2101886 is 6881012.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215 + ... + 2061.

It is an arithmetic number, because the mean of its divisors is an integer number (395010).

2^2101886 is an apocalyptic number.

2101886 is a deficient number, since it is larger than the sum of its proper divisors (1058194).

2101886 is a wasteful number, since it uses less digits than its factorization.

2101886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2418.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 2101886 is about 1449.7882604022. The cubic root of 2101886 is about 128.0962410963.

Adding to 2101886 its reverse (6881012), we get a palindrome (8982898).

The spelling of 2101886 in words is "two million, one hundred one thousand, eight hundred eighty-six".