2687855 has 8 divisors (see below), whose sum is σ = 3329664. Its totient is φ = 2080800.

The previous prime is 2687851. The next prime is 2687857. The reversal of 2687855 is 5587862.

2687855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2687855 - 2² = 2687851 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2687851) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8516 + ... + 8825.

It is an arithmetic number, because the mean of its divisors is an integer number (416208).

2^2687855 is an apocalyptic number.

2687855 is a deficient number, since it is larger than the sum of its proper divisors (641809).

2687855 is a wasteful number, since it uses less digits than its factorization.

2687855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17377.

The product of its digits is 134400, while the sum is 41.

The square root of 2687855 is about 1639.4679014851. The cubic root of 2687855 is about 139.0385656321.

The spelling of 2687855 in words is "two million, six hundred eighty-seven thousand, eight hundred fifty-five".