2107816 has 16 divisors (see below), whose sum is σ = 4059540. Its totient is φ = 1025280.

The previous prime is 2107811. The next prime is 2107837. The reversal of 2107816 is 6187012.

It can be written as a sum of positive squares in 2 ways, for example, as 2090916 + 16900 = 1446^2 + 130^2 .

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2107811) 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, 3265 + ... + 3856.

2^2107816 is an apocalyptic number.

It is an amenable number.

2107816 is a deficient number, since it is larger than the sum of its proper divisors (1951724).

2107816 is a wasteful number, since it uses less digits than its factorization.

2107816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7164 (or 7160 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 2107816 is about 1451.8319461976. The cubic root of 2107816 is about 128.2165929248.

The spelling of 2107816 in words is "two million, one hundred seven thousand, eight hundred sixteen".