2806912 has 16 divisors (see below), whose sum is σ = 5592150. Its totient is φ = 1403392.

The previous prime is 2806907. The next prime is 2806913. The reversal of 2806912 is 2196082.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1498176 + 1308736 = 1224^2 + 1144^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (2806913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10837 + ... + 11092.

2^2806912 is an apocalyptic number.

It is an amenable number.

2806912 is a deficient number, since it is larger than the sum of its proper divisors (2785238).

2806912 is an equidigital number, since it uses as much as digits as its factorization.

2806912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21943 (or 21931 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 2806912 is about 1675.3841350568. The cubic root of 2806912 is about 141.0618577403.

The spelling of 2806912 in words is "two million, eight hundred six thousand, nine hundred twelve".