2871560 has 16 divisors (see below), whose sum is σ = 6461100. Its totient is φ = 1148608.

The previous prime is 2871509. The next prime is 2871563. The reversal of 2871560 is 651782.

It can be written as a sum of positive squares in 2 ways, for example, as 2829124 + 42436 = 1682^2 + 206^2 .

It is not an unprimeable number, because it can be changed into a prime (2871563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35855 + ... + 35934.

2^2871560 is an apocalyptic number.

2871560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2871560 is an abundant number, since it is smaller than the sum of its proper divisors (3589540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2871560 is a wasteful number, since it uses less digits than its factorization.

2871560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71800 (or 71796 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 2871560 is about 1694.5677915032. The cubic root of 2871560 is about 142.1366138805.

The spelling of 2871560 in words is "two million, eight hundred seventy-one thousand, five hundred sixty".