2587871 has 8 divisors (see below), whose sum is σ = 3040464. Its totient is φ = 2171520.

The previous prime is 2587861. The next prime is 2587877. The reversal of 2587871 is 1787852.

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

It is not a de Polignac number, because 2587871 - 2¹⁰ = 2586847 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2587877) 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, 8906 + ... + 9191.

It is an arithmetic number, because the mean of its divisors is an integer number (380058).

2^2587871 is an apocalyptic number.

2587871 is a deficient number, since it is larger than the sum of its proper divisors (452593).

2587871 is a wasteful number, since it uses less digits than its factorization.

2587871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18121.

The product of its digits is 31360, while the sum is 38.

The square root of 2587871 is about 1608.6861098424. The cubic root of 2587871 is about 137.2927301391.

The spelling of 2587871 in words is "two million, five hundred eighty-seven thousand, eight hundred seventy-one".