2113686 has 12 divisors (see below), whose sum is σ = 4579692. Its totient is φ = 704556.

The previous prime is 2113681. The next prime is 2113703. The reversal of 2113686 is 6863112.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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 polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58696 + ... + 58731.

It is an arithmetic number, because the mean of its divisors is an integer number (381641).

2^2113686 is an apocalyptic number.

2113686 is an abundant number, since it is smaller than the sum of its proper divisors (2466006).

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

2113686 is a wasteful number, since it uses less digits than its factorization.

2113686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117435 (or 117432 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 2113686 is about 1453.8521245299. The cubic root of 2113686 is about 128.3355049201.

Adding to 2113686 its reverse (6863112), we get a palindrome (8976798).

The spelling of 2113686 in words is "two million, one hundred thirteen thousand, six hundred eighty-six".