2685878 has 16 divisors (see below), whose sum is σ = 4567920. Its totient is φ = 1174176.

The previous prime is 2685877. The next prime is 2685883. The reversal of 2685878 is 8785862.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2685877) 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, 2225 + ... + 3212.

It is an arithmetic number, because the mean of its divisors is an integer number (285495).

2^2685878 is an apocalyptic number.

2685878 is a deficient number, since it is larger than the sum of its proper divisors (1882042).

2685878 is a wasteful number, since it uses less digits than its factorization.

2685878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5471.

The product of its digits is 215040, while the sum is 44.

The square root of 2685878 is about 1638.8648510478. The cubic root of 2685878 is about 139.0044682241.

The spelling of 2685878 in words is "two million, six hundred eighty-five thousand, eight hundred seventy-eight".