2813856 has 24 divisors (see below), whose sum is σ = 7386624. Its totient is φ = 937920.

The previous prime is 2813851. The next prime is 2813879. The reversal of 2813856 is 6583182.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (2813851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14560 + ... + 14751.

It is an arithmetic number, because the mean of its divisors is an integer number (307776).

2^2813856 is an apocalyptic number.

It is an amenable number.

2813856 is an abundant number, since it is smaller than the sum of its proper divisors (4572768).

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

2813856 is a wasteful number, since it uses less digits than its factorization.

2813856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29324 (or 29316 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 2813856 is about 1677.4552154976. The cubic root of 2813856 is about 141.1780859292.

The spelling of 2813856 in words is "two million, eight hundred thirteen thousand, eight hundred fifty-six".