2849871 has 4 divisors (see below), whose sum is σ = 3799832. Its totient is φ = 1899912.

The previous prime is 2849857. The next prime is 2849887. The reversal of 2849871 is 1789482.

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

It is not a de Polignac number, because 2849871 - 2⁵ = 2849839 is a prime.

It is a D-number.

It is a Duffinian number.

2849871 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2849831) 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, 474976 + ... + 474981.

It is an arithmetic number, because the mean of its divisors is an integer number (949958).

2^2849871 is an apocalyptic number.

2849871 is a deficient number, since it is larger than the sum of its proper divisors (949961).

2849871 is an equidigital number, since it uses as much as digits as its factorization.

2849871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949960.

The product of its digits is 32256, while the sum is 39.

The square root of 2849871 is about 1688.1560946785. The cubic root of 2849871 is about 141.7778547327. Note that the first 3 decimals are identical.

The spelling of 2849871 in words is "two million, eight hundred forty-nine thousand, eight hundred seventy-one".