2641871 has 4 divisors (see below), whose sum is σ = 2733000. Its totient is φ = 2550744.

The previous prime is 2641841. The next prime is 2641879. The reversal of 2641871 is 1781462.

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 2641871 - 2¹⁴ = 2625487 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 91099 = 2641871 / (2 + 6 + 4 + 1 + 8 + 7 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2641879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45521 + ... + 45578.

It is an arithmetic number, because the mean of its divisors is an integer number (683250).

2^2641871 is an apocalyptic number.

2641871 is a deficient number, since it is larger than the sum of its proper divisors (91129).

2641871 is an equidigital number, since it uses as much as digits as its factorization.

2641871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91128.

The product of its digits is 2688, while the sum is 29.

The square root of 2641871 is about 1625.3833394003. The cubic root of 2641871 is about 138.2411068948.

The spelling of 2641871 in words is "two million, six hundred forty-one thousand, eight hundred seventy-one".