2678804 has 6 divisors (see below), whose sum is σ = 4687914. Its totient is φ = 1339400.

The previous prime is 2678789. The next prime is 2678807. The reversal of 2678804 is 4088762.

It can be written as a sum of positive squares in only one way, i.e., 2656900 + 21904 = 1630^2 + 148^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2678807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334847 + ... + 334854.

It is an arithmetic number, because the mean of its divisors is an integer number (781319).

2^2678804 is an apocalyptic number.

It is an amenable number.

2678804 is a deficient number, since it is larger than the sum of its proper divisors (2009110).

2678804 is a wasteful number, since it uses less digits than its factorization.

2678804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669705 (or 669703 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 2678804 is about 1636.7052269728. The cubic root of 2678804 is about 138.8823254024.

The spelling of 2678804 in words is "two million, six hundred seventy-eight thousand, eight hundred four".