2684871 has 24 divisors (see below), whose sum is σ = 4667520. Its totient is φ = 1452816.

The previous prime is 2684837. The next prime is 2684881. The reversal of 2684871 is 1784862.

It is not a de Polignac number, because 2684871 - 2⁶ = 2684807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2684881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76 + ... + 2318.

It is an arithmetic number, because the mean of its divisors is an integer number (194480).

2^2684871 is an apocalyptic number.

2684871 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2684871 is a deficient number, since it is larger than the sum of its proper divisors (1982649).

2684871 is a wasteful number, since it uses less digits than its factorization.

2684871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275 (or 2272 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 2684871 is about 1638.5575974008. The cubic root of 2684871 is about 138.9870940176.

Subtracting from 2684871 its reverse (1784862), we obtain a palindrome (900009).

The spelling of 2684871 in words is "two million, six hundred eighty-four thousand, eight hundred seventy-one".