2787424 has 12 divisors (see below), whose sum is σ = 5487804. Its totient is φ = 1393696.

The previous prime is 2787419. The next prime is 2787443. The reversal of 2787424 is 4247872.

It is a self number, because there is not a number n which added to its sum of digits gives 2787424.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43522 + ... + 43585.

It is an arithmetic number, because the mean of its divisors is an integer number (457317).

2^2787424 is an apocalyptic number.

It is an amenable number.

2787424 is a deficient number, since it is larger than the sum of its proper divisors (2700380).

2787424 is an equidigital number, since it uses as much as digits as its factorization.

2787424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87117 (or 87109 counting only the distinct ones).

The product of its digits is 25088, while the sum is 34.

The square root of 2787424 is about 1669.5580253468. The cubic root of 2787424 is about 140.7346416700.

The spelling of 2787424 in words is "two million, seven hundred eighty-seven thousand, four hundred twenty-four".