2113707 has 4 divisors (see below), whose sum is σ = 2818280. Its totient is φ = 1409136.

The previous prime is 2113703. The next prime is 2113733. The reversal of 2113707 is 7073112.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2113707 - 2² = 2113703 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2113703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352282 + ... + 352287.

It is an arithmetic number, because the mean of its divisors is an integer number (704570).

2^2113707 is an apocalyptic number.

2113707 is a deficient number, since it is larger than the sum of its proper divisors (704573).

2113707 is an equidigital number, since it uses as much as digits as its factorization.

2113707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704572.

The product of its (nonzero) digits is 294, while the sum is 21.

The square root of 2113707 is about 1453.8593467045. The cubic root of 2113707 is about 128.3359299338.

Adding to 2113707 its reverse (7073112), we get a palindrome (9186819).

The spelling of 2113707 in words is "two million, one hundred thirteen thousand, seven hundred seven".