2871973 has 8 divisors (see below), whose sum is σ = 3113208. Its totient is φ = 2633664.

The previous prime is 2871971. The next prime is 2871991. The reversal of 2871973 is 3791782.

It can be written as a sum of positive squares in 4 ways, for example, as 702244 + 2169729 = 838^2 + 1473^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2871973 - 2¹ = 2871971 is a prime.

It is a Duffinian number.

2871973 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2871971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1611 + ... + 2887.

It is an arithmetic number, because the mean of its divisors is an integer number (389151).

2^2871973 is an apocalyptic number.

It is an amenable number.

2871973 is a deficient number, since it is larger than the sum of its proper divisors (241235).

2871973 is a wasteful number, since it uses less digits than its factorization.

2871973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463.

The product of its digits is 21168, while the sum is 37.

The square root of 2871973 is about 1694.6896471036. The cubic root of 2871973 is about 142.1434277851.

It can be divided in two parts, 2871 and 973, that added together give a square (3844 = 62²).

The spelling of 2871973 in words is "two million, eight hundred seventy-one thousand, nine hundred seventy-three".