2678684 has 12 divisors (see below), whose sum is σ = 4725504. Its totient is φ = 1328544.

The previous prime is 2678681. The next prime is 2678699. The reversal of 2678684 is 4868762.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2678681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2129 + ... + 3144.

It is an arithmetic number, because the mean of its divisors is an integer number (393792).

2^2678684 is an apocalyptic number.

It is an amenable number.

2678684 is a deficient number, since it is larger than the sum of its proper divisors (2046820).

2678684 is a wasteful number, since it uses less digits than its factorization.

2678684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5404 (or 5402 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 2678684 is about 1636.6685675481. The cubic root of 2678684 is about 138.8802515755.

The spelling of 2678684 in words is "two million, six hundred seventy-eight thousand, six hundred eighty-four".