2680871 has 4 divisors (see below), whose sum is σ = 2720952. Its totient is φ = 2640792.

The previous prime is 2680837. The next prime is 2680877. The reversal of 2680871 is 1780862.

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

It is a cyclic number.

It is not a de Polignac number, because 2680871 - 2⁶ = 2680807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2680877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19940 + ... + 20073.

It is an arithmetic number, because the mean of its divisors is an integer number (680238).

2^2680871 is an apocalyptic number.

2680871 is a deficient number, since it is larger than the sum of its proper divisors (40081).

2680871 is an equidigital number, since it uses as much as digits as its factorization.

2680871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40080.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 2680871 is about 1637.3365567286. The cubic root of 2680871 is about 138.9180373548.

Subtracting from 2680871 its reverse (1780862), we obtain a palindrome (900009).

The spelling of 2680871 in words is "two million, six hundred eighty thousand, eight hundred seventy-one".