2743856 has 10 divisors (see below), whose sum is σ = 5316252. Its totient is φ = 1371920.

The previous prime is 2743849. The next prime is 2743859. The reversal of 2743856 is 6583472.

It is a happy number.

2743856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (2743859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85730 + ... + 85761.

2^2743856 is an apocalyptic number.

It is an amenable number.

2743856 is a deficient number, since it is larger than the sum of its proper divisors (2572396).

2743856 is a wasteful number, since it uses less digits than its factorization.

2743856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171499 (or 171493 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 2743856 is about 1656.4588736217. The cubic root of 2743856 is about 139.9975509776.

The spelling of 2743856 in words is "two million, seven hundred forty-three thousand, eight hundred fifty-six".