2788804 has 6 divisors (see below), whose sum is σ = 4880414. Its totient is φ = 1394400.

The previous prime is 2788783. The next prime is 2788813. The reversal of 2788804 is 4088872.

It can be written as a sum of positive squares in only one way, i.e., 2715904 + 72900 = 1648^2 + 270^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348597 + ... + 348604.

2^2788804 is an apocalyptic number.

It is an amenable number.

2788804 is a deficient number, since it is larger than the sum of its proper divisors (2091610).

2788804 is a wasteful number, since it uses less digits than its factorization.

2788804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697205 (or 697203 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 37.

The square root of 2788804 is about 1669.9712572377. The cubic root of 2788804 is about 140.7578628429.

It can be divided in two parts, 27 and 88804, that added together give a triangular number (88831 = T₄₂₁).

The spelling of 2788804 in words is "two million, seven hundred eighty-eight thousand, eight hundred four".