2675681 has 4 divisors (see below), whose sum is σ = 2833092. Its totient is φ = 2518272.

The previous prime is 2675657. The next prime is 2675683. The reversal of 2675681 is 1865762.

2675681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1500625 + 1175056 = 1225^2 + 1084^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2675681 is a prime.

It is a super-2 number, since 2×2675681² = 14318537627522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2675683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78680 + ... + 78713.

It is an arithmetic number, because the mean of its divisors is an integer number (708273).

2^2675681 is an apocalyptic number.

It is an amenable number.

2675681 is a deficient number, since it is larger than the sum of its proper divisors (157411).

2675681 is a wasteful number, since it uses less digits than its factorization.

2675681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157410.

The product of its digits is 20160, while the sum is 35.

The square root of 2675681 is about 1635.7508979059. The cubic root of 2675681 is about 138.8283338747.

The spelling of 2675681 in words is "two million, six hundred seventy-five thousand, six hundred eighty-one".