2787884 has 12 divisors (see below), whose sum is σ = 5322408. Its totient is φ = 1267200.

The previous prime is 2787859. The next prime is 2787907. The reversal of 2787884 is 4887872.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 63361 = 2787884 / (2 + 7 + 8 + 7 + 8 + 8 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31637 + ... + 31724.

It is an arithmetic number, because the mean of its divisors is an integer number (443534).

2^2787884 is an apocalyptic number.

It is an amenable number.

2787884 is a deficient number, since it is larger than the sum of its proper divisors (2534524).

2787884 is a wasteful number, since it uses less digits than its factorization.

2787884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63376 (or 63374 counting only the distinct ones).

The product of its digits is 200704, while the sum is 44.

The square root of 2787884 is about 1669.6957806738. The cubic root of 2787884 is about 140.7423829123.

The spelling of 2787884 in words is "two million, seven hundred eighty-seven thousand, eight hundred eighty-four".