2112706 has 4 divisors (see below), whose sum is σ = 3169062. Its totient is φ = 1056352.

The previous prime is 2112703. The next prime is 2112707. The reversal of 2112706 is 6072112.

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

It can be written as a sum of positive squares in only one way, i.e., 1918225 + 194481 = 1385^2 + 441^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528175 + ... + 528178.

2^2112706 is an apocalyptic number.

2112706 is a deficient number, since it is larger than the sum of its proper divisors (1056356).

2112706 is a wasteful number, since it uses less digits than its factorization.

2112706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056355.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 2112706 is about 1453.5150498017. The cubic root of 2112706 is about 128.3156678145.

Adding to 2112706 its reverse (6072112), we get a palindrome (8184818).

The spelling of 2112706 in words is "two million, one hundred twelve thousand, seven hundred six".