2789816 has 16 divisors (see below), whose sum is σ = 5256240. Its totient is φ = 1388160.

The previous prime is 2789791. The next prime is 2789821. The reversal of 2789816 is 6189872.

It is an alternating number because its digits alternate between even and odd.

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, 1205 + ... + 2651.

It is an arithmetic number, because the mean of its divisors is an integer number (328515).

2^2789816 is an apocalyptic number.

It is an amenable number.

2789816 is a deficient number, since it is larger than the sum of its proper divisors (2466424).

2789816 is a wasteful number, since it uses less digits than its factorization.

2789816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694 (or 1690 counting only the distinct ones).

The product of its digits is 48384, while the sum is 41.

The square root of 2789816 is about 1670.2742289816. The cubic root of 2789816 is about 140.7748868348.

The spelling of 2789816 in words is "two million, seven hundred eighty-nine thousand, eight hundred sixteen".