2803864 has 16 divisors (see below), whose sum is σ = 6008400. Its totient is φ = 1201632.

The previous prime is 2803847. The next prime is 2803873. The reversal of 2803864 is 4683082.

It is a happy number.

It is a zygodrome in base 13.

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, 24979 + ... + 25090.

It is an arithmetic number, because the mean of its divisors is an integer number (375525).

2^2803864 is an apocalyptic number.

It is an amenable number.

2803864 is an abundant number, since it is smaller than the sum of its proper divisors (3204536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2803864 is a wasteful number, since it uses less digits than its factorization.

2803864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50082 (or 50078 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 2803864 is about 1674.4742458455. The cubic root of 2803864 is about 141.0107799883.

The spelling of 2803864 in words is "two million, eight hundred three thousand, eight hundred sixty-four".