2787072 has 72 divisors (see below), whose sum is σ = 7848960. Its totient is φ = 875520.

The previous prime is 2787061. The next prime is 2787073. The reversal of 2787072 is 2707872.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2787073) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 14497 + ... + 14687.

2^2787072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2787072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3924480).

2787072 is an abundant number, since it is smaller than the sum of its proper divisors (5061888).

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

2787072 is a wasteful number, since it uses less digits than its factorization.

2787072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 33.

The square root of 2787072 is about 1669.4526048978. The cubic root of 2787072 is about 140.7287173614.

The spelling of 2787072 in words is "two million, seven hundred eighty-seven thousand, seventy-two".