2871591 has 8 divisors (see below), whose sum is σ = 3836784. Its totient is φ = 1910400.

The previous prime is 2871587. The next prime is 2871611. The reversal of 2871591 is 1951782.

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

It is not a de Polignac number, because 2871591 - 2² = 2871587 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2871091) 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, 1791 + ... + 2991.

It is an arithmetic number, because the mean of its divisors is an integer number (479598).

2^2871591 is an apocalyptic number.

2871591 is a deficient number, since it is larger than the sum of its proper divisors (965193).

2871591 is a wasteful number, since it uses less digits than its factorization.

2871591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001.

The product of its digits is 5040, while the sum is 33.

The square root of 2871591 is about 1694.5769383536. The cubic root of 2871591 is about 142.1371253585.

The spelling of 2871591 in words is "two million, eight hundred seventy-one thousand, five hundred ninety-one".