2113684 has 12 divisors (see below), whose sum is σ = 3777984. Its totient is φ = 1034264.

The previous prime is 2113681. The next prime is 2113703. The reversal of 2113684 is 4863112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5434 + ... + 5809.

It is an arithmetic number, because the mean of its divisors is an integer number (314832).

2^2113684 is an apocalyptic number.

It is an amenable number.

2113684 is a deficient number, since it is larger than the sum of its proper divisors (1664300).

2113684 is a wasteful number, since it uses less digits than its factorization.

2113684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11294 (or 11292 counting only the distinct ones).

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

The square root of 2113684 is about 1453.8514367018. The cubic root of 2113684 is about 128.3354644424.

Adding to 2113684 its reverse (4863112), we get a palindrome (6976796).

The spelling of 2113684 in words is "two million, one hundred thirteen thousand, six hundred eighty-four".