2871493 has 4 divisors (see below), whose sum is σ = 2970540. Its totient is φ = 2772448.

The previous prime is 2871469. The next prime is 2871503. The reversal of 2871493 is 3941782.

2871493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 459684 + 2411809 = 678^2 + 1553^2 .

It is a cyclic number.

It is not a de Polignac number, because 2871493 - 2¹⁷ = 2740421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2871433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49480 + ... + 49537.

It is an arithmetic number, because the mean of its divisors is an integer number (742635).

2^2871493 is an apocalyptic number.

It is an amenable number.

2871493 is a deficient number, since it is larger than the sum of its proper divisors (99047).

2871493 is an equidigital number, since it uses as much as digits as its factorization.

2871493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99046.

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

The square root of 2871493 is about 1694.5480223352. The cubic root of 2871493 is about 142.1355084156.

It can be divided in two parts, 2871 and 493, that multiplied together give a triangular number (1415403 = T₁₆₈₂).

The spelling of 2871493 in words is "two million, eight hundred seventy-one thousand, four hundred ninety-three".