2681871 has 12 divisors (see below), whose sum is σ = 3680712. Its totient is φ = 1736928.

The previous prime is 2681863. The next prime is 2681873. The reversal of 2681871 is 1781862.

It is a happy number.

2681871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2681871 - 2³ = 2681863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2681873) 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 11 ways as a sum of consecutive naturals, for example, 3781 + ... + 4433.

It is an arithmetic number, because the mean of its divisors is an integer number (306726).

2^2681871 is an apocalyptic number.

2681871 is a deficient number, since it is larger than the sum of its proper divisors (998841).

2681871 is an equidigital number, since it uses as much as digits as its factorization.

2681871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730 (or 693 counting only the distinct ones).

The product of its digits is 5376, while the sum is 33.

The square root of 2681871 is about 1637.6419022485. The cubic root of 2681871 is about 138.9353079568.

Subtracting from 2681871 its reverse (1781862), we obtain a palindrome (900009).

The spelling of 2681871 in words is "two million, six hundred eighty-one thousand, eight hundred seventy-one".