2871982 has 8 divisors (see below), whose sum is σ = 4399776. Its totient is φ = 1405392.

The previous prime is 2871971. The next prime is 2871991. The reversal of 2871982 is 2891782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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, 15183 + ... + 15370.

It is an arithmetic number, because the mean of its divisors is an integer number (549972).

2^2871982 is an apocalyptic number.

2871982 is a deficient number, since it is larger than the sum of its proper divisors (1527794).

2871982 is a wasteful number, since it uses less digits than its factorization.

2871982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30602.

The product of its digits is 16128, while the sum is 37.

The square root of 2871982 is about 1694.6923024549. The cubic root of 2871982 is about 142.1435762649.

It can be divided in two parts, 28 and 71982, that added together give a triangular number (72010 = T₃₇₉).

The spelling of 2871982 in words is "two million, eight hundred seventy-one thousand, nine hundred eighty-two".