2943871 has 12 divisors (see below), whose sum is σ = 3475632. Its totient is φ = 2485728.

The previous prime is 2943869. The next prime is 2943887. The reversal of 2943871 is 1783492.

It is not a de Polignac number, because 2943871 - 2¹ = 2943869 is a prime.

It is a Duffinian number.

2943871 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2943821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3166 + ... + 3988.

It is an arithmetic number, because the mean of its divisors is an integer number (289636).

2^2943871 is an apocalyptic number.

2943871 is a deficient number, since it is larger than the sum of its proper divisors (531761).

2943871 is an equidigital number, since it uses as much as digits as its factorization.

2943871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910 (or 903 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 2943871 is about 1715.7712551503. The cubic root of 2943871 is about 143.3198214533.

The spelling of 2943871 in words is "two million, nine hundred forty-three thousand, eight hundred seventy-one".