2871860 has 12 divisors (see below), whose sum is σ = 6030948. Its totient is φ = 1148736.

The previous prime is 2871857. The next prime is 2871877. The reversal of 2871860 is 681782.

2871860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 394384 + 2477476 = 628^2 + 1574^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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, 71777 + ... + 71816.

It is an arithmetic number, because the mean of its divisors is an integer number (502579).

2^2871860 is an apocalyptic number.

2871860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2871860 is an abundant number, since it is smaller than the sum of its proper divisors (3159088).

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

2871860 is a wasteful number, since it uses less digits than its factorization.

2871860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143602 (or 143600 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 2871860 is about 1694.6563073379. The cubic root of 2871860 is about 142.1415635130.

The spelling of 2871860 in words is "two million, eight hundred seventy-one thousand, eight hundred sixty".